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• Index of recycling sustainability for assessing waste paper recycling. • Integrating methodology of GIS and value chain model. • Historical changes of informal recyclables distribution sites in Beijing. • Value chain of waste paper recycling in Beijing may face challenges in the future. • Policy implications to improve waste paper recycling in Beijing. China established a self-organized and market-driven recycling system, which was dominated by the informal sectors. In recent years, the amount of domestically-recycled waste paper grew slower than expectation in China, which may be resulted from a decline in economic sustainability of current recycling system. For understanding the waste paper recycling system in most cities in China, the economic mechanism remains unclear and the city-level data is extremely insufficient. In this work, an index of recycling sustainability (IRS, benefit divided by cost) is analyzed with a resolution of 1 km2 grid in Beijing City, by adopting value chain and GIS methodology. Five degrees of IRS are defined, from high-degree (IRS > 1.10) to low-degree (IRS < 0.95). Different stakeholders in the informal waste paper recycling system were interviewed to fill the data gap. Results show that: (1) from 2015 to 2018, the informal recycling of waste paper accounted for approximate 80% in Beijing; (2) the number of informal recyclables distribution sites decreased from 27 to 11, and their average distance to the city-center rose from 27.5 km to 40.9 km; (3) in 2015 and 2018, the grids with high-degree IRS accounted for 99.5% and 89.2%, respectively, indicating a sustainable waste paper recycling industry in Beijing; and (4) according to the scenario analysis, if the operating cost rises by 30%, the grids with low-degree IRS accounts for 98.5%, indicating a nontrivial challenges when the recycling cost keeps increasing in the future. Policy recommendations are put forward for a more sustainable paper waste recycling system in China. [ABSTRACT FROM AUTHOR]

• analyze the energy efficiency of Beijing's industrial sectors from 2002 to 2018. • model industry heterogeneity of Beijing's industrial sectors accurately. • low energy efficiency of Beijing's industrial sectors due to management inefficiency. • the energy efficiency of heavy industry is higher than that of light industry. • explore the influencing factors of energy efficiency of Beijing's industrial sectors. Improving energy efficiency is one of the effective means to achieve China's carbon peaking and carbon neutrality goals. As the capital of China, Beijing should improve energy efficiency and has a primary responsibility in achieving the goals. Considering the heterogeneity of industrial sectors, this paper proposes a data envelopment analysis (DEA) approach to analyze the total factor energy efficiency and its influencing factors of 31 industrial sectors in Beijing from 2002 to 2018. We show that the low energy efficiency of Beijing's industrial sectors, mainly due to management inefficiency, is not conducive to the realization of the goals. Besides, the energy efficiency of heavy industry is higher than that of light industry. The expansion of enterprise scale has a positive impact on energy efficiency, while the property right structure, foreign trade and energy consumption structure have a negative impact on energy efficiency. Finally, we put forward some policy recommendations. [ABSTRACT FROM AUTHOR]

Residential mobility has become an increasingly important issue in China, where urban families participate frenetically in the commodity housing market leading to soaring property prices. Applying place dependence approach and logistic regression models, this paper examines the association between residential mobility intentions and place dependence for employment and education in Beijing. The results reveal that people's intentions to move homes are driven by place dependence on the access to high-quality schools for their children, while the dependence for employment is rather weak. The findings indicate children's education has emerged as a new driving force that shapes urban space in contemporary China and therefore should be a focal point for planners and policy makers in urban resource distribution. This paper provides evidences to further our understanding of the high premium of properties that enable access to good schools. The needs for other spatial utilities and sentimental attachment to a place also encourage residential mobility intentions, which deserves further research. • Residential mobility intention was analyzed in Zhongguancun area in Beijing. • Influences of children's education and parents' employment were measured. • Children's education has emerged as a new driving force affecting residential choices. • Place dependence provides a useful lens to comprehend housing mobility in contemporary cities. [ABSTRACT FROM AUTHOR]

Traffic congestion is one of the key issues relating to sustainability and livability in many large cities. In particular, the situation in the growing megacities of developing countries has been worsening and is now attracting considerable attention from researchers and politicians. An understanding of the spatio-temporal patterns of this congestion is necessary in order to formulate effective policies to relieve it. Much of the research to date has focused on single districts for relatively short periods (days or weeks) using GPS, while long-term analysis of spatial and temporal patterns of traffic congestion at the city level has been rare. The aim of this paper is to help fill this gap in the literature by applying a big data analytic approach to a sample of 10.16 million records of traffic congestion indexes for 233 roads in the Beijing area over a six-month period. This analysis revealed four typical traffic congestion patterns in Beijing, which can be described as the weekend mode, holiday mode, weekday mode A, and weekday mode B. Each of these patterns possesses unique spatial and temporal characteristics. Compared with working days, on which congestion is regular and agglomerated, weekends and holidays are characterized by long-lasting congestion peaks throughout the day. Non-commuting travel on weekends and holidays, including trips for tourism, shopping, entertainment, and children's after-school activities, are major contributors to traffic congestion of the weekend and holiday mode. Owing to poor jobs-housing balance, the suburban new towns and job centres had relatively higher congestion than other areas. These findings shed significant light on geographical patterns of traffic congestion in growing megacities. • Traffic congestion is a key issue relating to urban sustainability. • This paper apples a big data analytic approach to a sample of 10.16 million records of traffic congestion. • There are four typical traffic congestion patterns in Beijing. • No-commuting travels on weekends and holidays are major contributors to traffic congestion. • The suburban new towns and job centres had relatively higher congestion. [ABSTRACT FROM AUTHOR]

Highlights • The majority of carbon emissions derived from indirect fraction of energy consumption in Beijing. • Life expectancy is reduced in areas where a higher amount of coal is burnt for household consumption. • Socio-economic structure changes play a major role in the observed energy and emission trends. • Search of optimal solutions for energy-efficient and low carbon private will continue to be crucial. Abstract Household carbon emissions are major contributors to global emissions that is increasing recognized. In China, approximately 20 million rural populations transfer to the urban areas annually, which results in a lot of new infrastructure construction and consumer requirements. This paper quantifies the numbers and trends of urban and rural resident on energy use and carbon footprint in Beijing from 1996 to 2011 by analysis of Consumer Lifestyle Approach (CLA) and carbon footprint. It provides a better understanding of complete energy consumption and carbon emissions profile in Beijing. The results show that for the Beijing residents, when direct and indirect energy consumption and CO 2 emissions are taken into account, the total household energy consumption proportion compared to the city increases from 22.7% to 59.2%, and the total household CO 2 emissions proportion increases from 32.2% to 68.8% in the research period. In the urbanization process, total energy consumption and carbon emissions of Beijing urban residents are significantly higher than those of rural residents. However, the transformation of a rural Beijing resident into an urban Beijing resident would not create a large difference between urban and rural areas in the per-capita energy consumption and per-capita carbon footprint. Results are assessed with respect to the available scientific literature, as well as potential available technological and policy solutions. Since the implementation that different policy instruments can mitigate carbon emissions, governments are gradually combining policy measures for the same technology. The results in this paper may help promote alternative consumption strategies in household sector which could entail more reasonable resource distribution and effective reduction of both urban and rural environmental influences. [ABSTRACT FROM AUTHOR]

Abstract Urban gated communities have become increasingly common worldwide in both academic and policy discourse over recent decades. In contrast, gated communities in rural areas, a newer phenomenon, are rarely analyzed. This paper focuses on the unique phenomenon of gated villages that have emerged in the Beijing metropolitan area. We aim to explore the content, mechanism, heterogeneities etc. of gated villages, and how they differentiate from urban gated community. Five gated villages were selected for fieldwork and 27 semi-structured interviews were conducted with villagers, migrant tenants, heads of village committees, local government officers, and academics. Based on the framework of structuration theory, this paper analyzes the mechanism behind the formation of gated villages, which differ from urban gated communities. Based on the case studies, this paper concludes that: (1) the formation of the gated village is the culmination of interactions between complex dynamics of regional elements and the intellectual responses of various actors under the context of transitional rural China; (2) although the gated village appears similar to urban gated communities, it is in essence a new institutional tool of social management rather than a simple transfer of existing gated community structures into rural regions; (3) the consequences of the gated village are in general positive and can be enhanced by restricting physical size and by improvement of government-village co-operation. Highlights • Uncover the causes, mechanisms and consequences of gated village. • Distinguish rural gated village from urban gated community. • Clarify the co-evolution of institutions and actors in the formation and development of gated village. • Suggest that gated village can be an efficient institutional tool to improve rural wellbeing. [ABSTRACT FROM AUTHOR]

Abstract By virtue of the hukou reform issued by the State Council in 2014, a more people-oriented development path under a 'New Urbanization Model' is implemented during the 13th Five Year Plan. In a new grading regime, migrants' housing tenurial status plays a crucial role in differentiating who are qualified to enjoy the welfare entitlement (e.g. public education) in the host cities. Drawing upon the data from the 2011 and 2016 Migrant Dynamics Monitoring Survey, this paper investigates the rationale of the hybrid tenure continuum, its stratification mechanism among the whole migrant population in Beijing, and its dynamic change and impact on migrants given the undertaking of drastic measures by Beijing Municipality in the early 2010s to address its informality problems. A hybrid tenure structure from an insecure to de facto and to legal titles was proved critical to increase the resilience of housing supply for migrant groups. Policy implication of this paper is about how best to empower migrants as equal citizens. [ABSTRACT FROM AUTHOR]

Abstract Cities do play significant roles in tackling global environmental changes. Decoupling economic growth from environmental pressures is critical for global sustainable development, however, few studies pay attention to the decoupling analysis at city level. This paper conducts a comparative study of the decoupling performance of economic output from CO 2 emissions between Beijing and Shanghai, the top two cities in China. In this paper, the decoupling trends and the decoupling effects are explored from a sectoral perspective, by combining the Tapio decoupling elasticity and the logarithmic mean Divisia index (LMDI) model. The results show that Beijing and Shanghai both experienced weak decoupling in construction, expansive negative decoupling in transport, expansive coupling in trade, and weak decoupling in others over the period 2000–2015. Moreover, agriculture appeared strong decoupling in Beijing, and recessive decoupling in Shanghai; industry showed strong decoupling in Beijing, and weak decoupling in Shanghai. The decoupling effects showed different magnitudes and patterns in industrial sectors between Beijing and Shanghai. Overall, per-capita GDP and population growth inhibited the decoupling, while energy intensity, industrial share, energy mix accelerated the decoupling process. Highlights • The decoupling of sectoral economic output from carbon emissions in Beijing and Shanghai are investigated. • Beijing's industry enjoyed better decoupling performance than Shanghai's industry. • Transport should be put more emphasis in further decoupling efforts. • Energy intensity is crucial effect accelerating the decoupling process. [ABSTRACT FROM AUTHOR]

Abstract This paper studies the labour force in Beijing in relation to that in London. Through this comparative approach, the paper breaks the current isolation of Chinese studies, crosses the categorical divides in comparative research, and addresses local-global dialects in global cities. A very similar description of the labour force between these two cities is revealed. The labour forces in both cities had a young age profile with that in Beijing being only slightly younger, both shared a male-dominated characteristic with a stronger dominance in Beijing, and comprised primarily highly educated individuals who were slightly less represented in Beijing. Such a dominance of young, male and highly educated individuals in both cities is due to the two cities' similar attraction to these people as both now being a global city. The different extents of dominance in Beijing, however, are influenced by its various institutional practices. Yet with an aging population and a fast-developing urbanisation in China, these practices are very likely to be altered in the near future. It is therefore foreseeable that the labour force in Beijing will become yet more similar to that of London very soon. Based on these findings, it is untenable to claim Chinese cities as being greatly different. To largely exclude such cities from the comparative research is also no longer justifiable. [ABSTRACT FROM AUTHOR]

Currently, the functions of rural territories in metropolitan suburbs have been gradually evolved under rapid urbanization since the turn of the new millennium. Meanwhile, the socio-economic morphology and spatial pattern in the rural areas are undergoing dramatic restructuring. This paper takes the Huangshandian village in the suburb of Beijing as a case study area to carry out an empirical study on the process of rural restructuring by adopting the method of participatory rural assessment (PRA) and GIS technology. The results show that since 2000, the Huangshandian village has experienced different industrial transformations from traditional agriculture to the industries of primary processing and eco-tourism. The function of traditional agricultural production is declining gradually, and the industrial production, ecological culture and other multi-functional value of the rural territory have successively appeared. With the evolution and restructuring of socio-economic morphology, there are significant changes in the quantity, structure, and pattern of rural living, production and ecological space accordingly. The mutually reinforced and restrictive relationships among economic restructuring, spatial restructuring, and social restructuring have jointly driven the systematic development of the “natural-ecological-economic-social” systems and the comprehensive promotion of the “production-living-ecology-culture” functions. Based on the analysis of the process of rural restructuring of the Huangshandian village in the aspects of economic restructuring, spatial restructuring, and social restructuring, this paper puts forward some suggestions on land use policy and institutional innovations aiming at optimally allocating the land resources and promoting the rural restructuring in metropolitan suburbs, including accelerating the institutional framework design of rural land transfer, exploring the tourism land management system adapting to the new pattern of rural economy and pushing forward the re-use mechanism of abandoned industrial and mining land. [ABSTRACT FROM AUTHOR]

This paper engages with relational understandings of place and place-making, and highlights the importance of attending to the temporality of place-framing/making in analyzing place politics and place-making practices. Building temporary, strategic alliance is a key step of place-making in place contestations, however, there is so far limited attention paid to the impacts of such alliance building on place-framing/making practices, especially when different actors are positioned in uneven power relations. In this paper, I use a case study of the 798 arts district in Beijing, China to demonstrate that the need of gaining politically powerful actors as allies can have substantial influences on place-framing in the first place and on subsequent place-making results. Drawing on data collected from interviews and policy and planning documents, I show that in a framing of the 798 arts district constructed by artists for saving the arts district from being demolished, the art component of the arts district was concealed, whereas components of architecture, historical significance, and city image were strategically emphasized for gaining support from the municipal government. These elements were later incorporated into the municipal government’s framings of arts districts through policies and planning, but were twisted and realigned with elements like tourism and experience, which ultimately facilitates displacement of artists from the arts district. Thus, I argue, relational approach towards place-framing/making needs to be more attentive to the temporality of place-framing/making, which would allow it to more sufficiently address how various citizen-state relationships shape place-making and to become more globally oriented. [ABSTRACT FROM AUTHOR]

On April 1, 2017, China announced to initiate the Xiong’an New Area (XNA) plan, which is a national-level strategy aimed at alleviating the pressures felt by Beijing and promoting the integration of the Beijing-Tianjin-Hebei (BTH) city-region. In China, a city-region can be viewed as an outcome of state spatial selectivity that aims to manage crises and maintain governance through strong state involvement. This paper attempts to provide a broad view of the XNA plan by examining it in the context of China’s long-term efforts to coordinate the BTH region, explaining the incentives associated with choosing Xiong’an, and analyzing the challenges the plan has faced. Considering that theoretical insights based on Western experience may not be applicable to China, this paper can contribute to the debate revealing the logics of city-region building in different contexts. [ABSTRACT FROM AUTHOR]

Existing studies investigate mobility inequality from the perspectives of accessibility and non-economic welfare. This paper proposes to analyze mobility inequality through the lens of economic welfare, which reflects the difference of passengers' willingness-to-pay and the actual fare. Based on the theory of welfare economics, this paper first defines the concept and specifies the formula of economic welfare with regards to mobility inequality. Then, economic welfare is calculated regarding the elderly's bus fare in Beijing and econometric models are estimated to examine how mobility inequality is socially and spatially distributed. Results show that those with low income and living in the low-unit-house-price communities in the city center are the marginalized group. The benefits of introducing economic welfare to mobility inequality studies include (1) it can improve the objectivity in assessing travelers' feelings and identifying marginalized groups; (2) the concept of economic welfare can directly correspond to the "sense of gain" policy initiative in China; (3) the perspective of economic welfare can inform transportation pricing policies to mitigate inequality issues. To conclude, this paper contributes to the existing literature by a new perspective of economic welfare that enriches the current dialogue of mobility inequality among the geographical, transportation, sociological and psychological researchers. • Economic welfare is introduced to measure mobility inequality. • Economic welfare can echo Chinese sense of gain initiative. • Young elderly's bus fare increases would incur inequality. • City planners in Beijing are suggested to propose fare increase policies based on income to promote social inclusion. • More routes around the low-unit-house-price communities may be planned and suburban-city express routes may charge a premium. [ABSTRACT FROM AUTHOR]

Informal development on farmland is not only a major problem facing thousands of people, but also a major challenge to land use planning. In the rapidly growing literature on informal land development in China, most authors claim that ambiguous property rights and the dual land tenure system are the primary factors involved. As a result, existing state-led land use planning responses to informal development are solely focused on strengthening the legal regulation of land development. This paper challenges this approach, on the basis of the theory of urban informality. By examining many illegal gated communities in suburban Beijing, the paper argues that the informal development of farmland on the urban fringe is the result of local grassroots groups spontaneously responding to socioeconomic inequities in the context of transition to a market economy. These inequities mainly concern distributive inequity, procedural inequity and contextual inequity in relation to land use. It appears that the ongoing market-oriented initiatives of the state government could worsen informal land development unless these socioeconomic inequalities at the local level are tackled. The growing civil society is another change to the state's control of informal land development in China's cities. A new land use planning system which has more concern for social inclusion rather than focusing on centralized control is imperative in China. [ABSTRACT FROM AUTHOR]

This paper introduces a unique industrial configuration that has emerged in Beijing, where three economic clusters in the biomedical industry, originally established as industrial/research parks, have developed parallel to each other. This configuration of multiple co-located clusters of the same industry, which has not been discussed before, raises the question of whether the industrial/research parks are competing for the same resources, or whether they are complementary to each other and can collectively be viewed as a new type of industrial configuration. The paper conceptualizes a framework of multiple clusters in mega-city regions that distinguishes between collaborating and competing clusters and presents initial empirical evidence for the Beijing case. As such, this research aims to unravel the phenomenon of multiple clusters in mega-city regions and to understand the complex spatial interrelationships that exist within and beyond multiple co-located clusters in the same industry. [ABSTRACT FROM AUTHOR]

The application of a gas-fired CCHP can effectively solve seasonal shortages of electricity and gas. To realize providing investment decision for gas-fired CCHP in Beijing, first, the paper analyses the status of gas-fired CCHP systems in Beijing; second, the technology structure and economic benefits of gas-fired CCHP systems are analyzed; third, a technical economic evaluation framework of a gas-fired CCHP is built, which analyses the cascade utilization and energy saving effects of a heat and power energy system in a gas-fired CCHP system. Analysis of the gas-fired CCHP system economy and the factors that influence the economic performance is also performed, as well as a sensitivity analysis. In addition, the paper also analyses an energy efficiency sharing model of a cooling, heating and power system that considers the grid enterprises’ economic efficiency. Finally, an empirical analysis of a trigeneration project control center in the Beijing Gas Group is carried out. Research results show that gas-fired CCHP system is good to both customers and beneficial, fuel price and electricity price will influence revenue of Gas-fired CCHP system greatly, a reasonable energy efficiency sharing ratio will help to the recovery of investment in Gas-fired CCHP. [ABSTRACT FROM AUTHOR]

Urbanization nowadays is a very important driving force for China's social and economic development, but the resource shortage and pollution accompanied have troubled China especially in the urban areas. As the capital of China, Beijing is a mega-city and densely populated. Its development and prosperity is supported by a large amount of material consumption, rendering a severe shortage of natural resources and serious pollution. Underlying the premise of maintaining its development and prosperity, Beijing is facing an enormous challenge in dealing with heavy pollution load. Therefore, it is a very important step to decouple the relationship between economic development and environmental pollution. This paper makes a study on the relationship between the economic growth and pollution load for Beijing based on the analysis of Environmental Kuznets Curves (EKC) which builds an econometric model using data over the period 1990–2014. We found the intensity of most pollutants have arrived at the turning point around 2006 while the total amount of most emissions remain at a high level, this is a favorable initiation for the transforming the development patterns as it has begun to decouple the pollution intensity and economy. Based on the statistics, this paper further analyzes the driving factors behind the active change. We found that the adjustment of industrial structure, a reasonable city planning, powerful measures in pollutants control and technology advance, contribute a lot to the transformation. Especially in the recent years, Beijing and correlative regions took joint measures to prevent and reduce air pollution, which have an apparent functions. Finally, this paper proposes several suggestions for Beijing to decouple the economic growth and environmental pollution load, based on these important conclusions. [ABSTRACT FROM AUTHOR]

Agriculture in peri-urban areas is prone to dynamic changes due to urban influences. Previous studies have explored the impact of urban growth on peri-urban agriculture (PUA), but the active responses of the agricultural sector are rarely examined. This paper investigates recent agricultural development practices in peri-urban Beijing and explores approaches to agricultural transformation in the rapid process of urbanisation. The investigation finds that high-tech precision agriculture, down-stream processing and agro-tourism have emerged as major forms of PUA in Beijing. It also uncovers that the PUA developments are not only economically appealing, but also socially inclusive and environmental friendly. The findings contribute to a better understanding of PUA progress in China. The paper suggests policy implications in facilitating integrated development between urban and rural sectors, which would help improve economic development, spatial planning and local governance in peri-urban areas. [ABSTRACT FROM AUTHOR]

Across the world, Transit Oriented Development (TOD) offers a strategy to integrate land use and transport systems by clustering urban developments around public transport nodes in functionally dense and diverse, pedestrian- and cycling-friendly areas. Even though the basic philosophy of TOD seems to be the same in all contexts, its specific applications greatly differ in form, function and impacts, calling for context-based TOD typologies that can help map these local specificities and better focus policy interventions. In recent years, TOD has also been widely advocated and applied in China; however, so far no study has systematically developed a TOD typology in a Chinese context. This paper fills this gap for the case of the Beijing metropolitan area. The approach is based on the node-place model, introduced by Bertolini (1996, 1999) to chart ‘Transit’ and ‘Development’ components, expanding it with a third, ‘Oriented’, dimension to quantify the degree of orientation of transit and development components towards each other. The paper reviewed the main TOD indicators in the international literature, selected those appropriate for the Beijing context, and classified the metro station areas into TOD types through a cluster analysis. The six identified types of metro station areas in Beijing demonstrate how the context-specific typology can support local urban and transport planners, designers and policymakers when considering future interventions. [ABSTRACT FROM AUTHOR]

Beijing, the capital of China, has experienced rapid industrialization, urbanization and motorization in recent decades. Consequently, air pollution in Beijing, especially fine particulate matter (PM 2.5 ) pollution, has gradually become a severe environmental issue, due to the continuing growth in energy consumption and the resulting multiple pollutant emissions. In response to the increasingly serious PM 2.5 pollution, Beijing's government implemented a series of policies, measures and regulations on air pollution prevention and control and took some concrete actions to improve air quality. In this paper, firstly, we summarize China's ambient air quality standards, China's policies and regulations on air pollution prevention and control. Secondly, we illustrate historical evolution and current status of air pollution in Beijing. Finally, we introduce control measures and actions in Beijing and its surrounding areas. The paper aims to help environmental scientists and policy makers around the world understand the past and current air pollution in Beijing and control strategies and actions taken by Beijing's government. [ABSTRACT FROM AUTHOR]

Commencing in the 1990s, market reforms, high rates of urban growth and dissolution of public-subsidized housing created cumulatively a speculative property boom in Beijing. Economic housing was meant to provide affordable housing to low and middle income residents. But with the state earnest in using property market to promote GDP growth, political commitments were weakened and resources allocated went scarce. Non-target middle class “free riders” were also let into economic housing by developers to generate higher profit. The paper investigates the causes of misallocation of economic housing in Beijing. A housing survey was conducted to look into the competing interests in two starkly contrasted economic housing clusters — inner city resettlement and middle-class neighbourhoods. This paper aims to address the importance of balancing the growth-led policy with social equity and redistribution of public resources. An excessive emphasis of the former would deprive the latter of social justice and more equitable distribution. Short-term and longer term solutions are proposed. [ABSTRACT FROM AUTHOR]

This paper describes and seeks to understand the scale of the electric bicycle (electric two-wheeler) market in China, and to begin to explain its emergence with a view to outlining the prospects for learning from this case for applications in other countries around the world. Drawing on secondary data from Chinese government sources, electric bicycle industry websites, Chinese media sites and other sources, this exploratory paper positions the development of the electric bicycle market as occurring largely in the absence of positive policy intervention – in stark contrast to the nurturing afforded the electric car sector world-wide. The paper develops a multi-scalar perspective of transitions theory in an institutional setting, with examples drawn from Beijing and Fuzhou, to explain the processes of change outside of the traditional reference context of technology policy and management. It is concluded that transitions theory has a greater flexibility and adaptability as an explanatory framework than previously shown, but empirically the electric two-wheeler is a weakly-embedded alternative to mainstream automobility. [ABSTRACT FROM AUTHOR]

Mixed-use development has been widely accepted as a strategy in urban planning to address the problems resulted from the traditional zoning in the West, and it has also been increasingly adopted in many Chinese cities in recent decades with quite different results. However, few studies have provided empirical support to the claimed benefits of mixed-use development and little is known about the process to achieve the desired benefits of mixed-use. This paper reports our investigation of three typical urban development models commonly used in China – “top-down” centrally-controlled development model, “bottom-up” individual-dominant development model, and “bottom-up” collective-dominant development model. Using Southern Changping of Beijing as a case study, where the mixed-use development has been adopted in the past decade, we conduct a systematic evaluation of the three approaches and assess the impacts of mixed-use on urban development in Beijing. By conducting questionnaire analysis and one-way analysis of variance (ANOVA) to compare the job-housing pattern, career development of residents, sense of community and community vitality of the three models, the paper discovers that the community under “bottom-up” collective-dominant development model effectively achieved mixed-use development, while the “top-down” centrally-controlled development may lead to functional division and the “bottom-up” individual-dominant developed community ended up in disorder and chaos. Our findings indicate that under current policy framework and development trends in China, the “bottom-up” collective-dominant development model and social inclusion would be an effective way to achieving the intended goals of the mixed-use development. [ABSTRACT FROM AUTHOR]

• The effectiveness of existing traffic measures in Beijing is investigated. • A survey on drivers' opinions and attitudes towards the traffic situation is given. • Most respondents think congestion is still serious in Beijing. • The perceived impact of congestion on personal car use is relatively low. • The symbolic meaning of personal cars has large impact on willingness to change. Facing serious challenges of traffic congestion and air pollution, Beijing has implemented a series of traffic polices. In this paper, we first investigate the effectiveness of existing traffic measures in Beijing and analyse the underlying factors from the perspective of drivers, which provide insights for the traffic regulations in other cities worldwide. While the car ownership restriction has effectively limited the total number of vehicle in Beijing, the effect of the car use restriction only lasts for a short period. A survey on drivers' opinions and attitudes towards the traffic situation and a potential measure, i.e., tradable driving credit (TDC), is conducted. Although traffic data shows that congestion improved and traffic was slightly congested in recent years in Beijing, most respondents believe congestion is still serious in Beijing. However, they think the impact of traffic congestion on their personal car use is relatively low, which could partly explain why so many travellers still depend on driving given the relative convenient transit facilities in Beijing. In addition, a large proportion of respondents treat personal cars as a representation of social status and think driving bring them pleasures, which indicates that it may be hard to further decrease the share of car trips in Beijing. According to their attitudes and social-economical characters, respondents' willingness on their changes of travel behaviours under TDC is investigated. The results show that individuals' social-economic characters such as income level, education and family size and the symbolic meaning of personal cars have significant influence on respondents' willingness to switch to other transport modes. [ABSTRACT FROM AUTHOR]

Megacities in China are undergoing transformation in urban functional structure brought on by rapid urbanization and spatial expansion, while private motorization connects disparate functional zones with ever-longer journeys. Policies to control growth of the car fleet while investing in mass public transport, in Beijing and in many other cities, have divided city residents into car users and those dependent on public transport. This paper examines these policies from the transport equity perspective by measuring accessibility disparity between public transport and private car. Cumulative accessibility is measured for each of the two transport modes, while an accessibility equity index (AEI) is developed based on numerical and spatial computation. The recent changes in spatial distributions of population and employment in Beijing are analyzed. Accessibility and AEI are measured using network-based Geographical Information System (GIS) and analyzed quantitatively and spatially. Nine scenarios with different employment location strategies are simulated to analyze their impacts on accessibility and AEI, with clear benefits among the scenarios with regard to accessibility equity for suburban populations. Results suggest that reducing the demand for car use and ownership can be supported through employment spatial redistribution policies, which can be used to raise relative accessibility by public transport. Land use policy can form part of a larger set of spatial and transport policies that includes regulation of the car fleet and public transport development. Such integrated approaches are of particular importance for the present and future megacities of China that are expanding rapidly, with relatively high volume flows on limited movement networks. • Proposed a framework for transport equity assessment through measuring modal and spatial disparity. • Developed an accessibility equity index (AEI) based on numerical spatial computation. • Examined the transport equity of Beijing as a case study. • Applied equity assessment to spatial scenario analysis and policy with equity and efficiency improvement was suggested. [ABSTRACT FROM AUTHOR]

Green space accessibility affects housing prices, which is an issue that has been underappreciated. This paper takes Beijing's central urban area as an example. First, the Gaussian-based two-step floating catchment area (G2SFCA) method is used to measure four levels (community green space, subdistrict green space, district green space, and municipal green space) of green space accessibility by multiple travel modes (walking, cycling and driving). Second, the spatial error model (SEM) is used to examine the factors influencing housing prices. Finally, the geographically weighted regression (GWR) model is introduced to explore the spatial relationship between green space accessibility by walking, cycling and driving and housing prices. The results show the following: (1) The SEM shows that only driving accessibility has a positive spatial spillover effect on housing prices, indicating that the spatial inequity of local community green spaces by driving will exacerbate surrounding spatial inequity. (2) The GWR model shows that from the perspective of walking and driving accessibility, most areas within the Second Ring Road show spatial equity in green spaces, while cycling accessibility shows that the spatial inequity of green space exists only outside the Second Ring Road. (3) We find that municipal green space and subdistrict green space most affect the spatial equity of green spaces. Community green space, which is not open to the public, plays a minimal role. Regarding walking and driving accessibility, municipal green space increases the spatial equity of green spaces. In contrast, this type of green space can promote the spatial equity of green spaces regarding cycling accessibility. This study can significantly improve the quality of urban settlements in the Global South and has important implications for policy-makers, planners, and stakeholders in other large cities worldwide to create green and liveable cities. • We investigated green space accessibility impact on housing prices • G2SFCA was used to measure green space accessibility for multiple travel modes • Driving accessibility had positive spatial spillover effect on housing prices • Driving and cycling green space accessibility had opposite effect on housing prices • Our results provided guidance and example for other developing countries megacities. [ABSTRACT FROM AUTHOR]

Abstract: Much like other post-socialist cities, Chinese cities experienced dramatic changes after economic reform. The danwei, or state-owned work unit, was once a fundamental building block of Chinese cities. In addition to being the basic form of economic and social organization, danwei communities defined Chinese urban development before reform, taking the form of gated, walled-off combined factory and residential areas. This paper focuses on spatial changes at the neighborhood scale in danwei, by selecting the Tongrentang pharmaceutical factory in Beijing, China during the time period between 1973 and 2006 as a case study. Through archival material and interviews, this paper describes how the community changed from gated, boring, solidified and strictly constrained work units to un-gated, vibrant, mixed-use and flexible urban neighborhoods. This case study in urban China provides implications for planning professionals and policy makers. By properly redeveloping these brownfield, traditional danwei communities many change to become un-gated, livable, accessible, integrated, and sustainable in the post-socialist era. The implication for current transition theory is that despite the similarity to Central and East European countries, urban China has a local context and unique spatial changes that should be embraced in future transition studies. [Copyright &y& Elsevier]

Abstract: Water is scarce in Beijing, China, and rapid economic and societal development, as well as the dense population, causes severe pressure on local water resources. This paper involves the “water footprint”, defined as the volume of water needed to produce the goods and services consumed, which quantifies the environmental impact of consumption. By combining an input–output model with intersectoral water flows, this paper describes a modified input–output model to calculate the direct, indirect and gross water footprint intensity and the gross water footprint of different sectors in Beijing in 2002 and 2007. The results show declines in the agricultural and industrial water footprints for these years. The grey water footprint, which reflects environmental pollution caused by human production and consumption, was also calculated and suggests that the shortage of water resources, rather than water pollution, is the main problem in Beijing. Evaluation of the virtual water trade, along with water savings in the various sectors, verified that Beijing is a net virtual water importer. Furthermore, the water footprint shows that Beijing is advanced in water use efficiency compared to other provinces in China. Finally, adjustments in the industrial structure, along with virtual water importing, should be prioritized as water-saving strategies for Beijing. [Copyright &y& Elsevier]

Abstract: Safety problems are serious in urban underground space. Take traffic and commercial entertainment underground space in Beijing as examples, the paper studies traffic accidents and fire disaster in Xizhimen subway station, Zhongyou and Juntai department store, and finds in Xizhimen subway station the crowd speed are 0.7m/s at early and late peak on Monday and Friday, and 0.8m/s at early peak on Saturday, and others is 0.9m/s; the population flow are about 6.4 people/s at early peak and 4.5 at late peak on Monday and Friday, which are larger than on Saturday (4.8, 3.4); the crowd density are about 3.0 people/m2 at early peak and 1.9 at late peak on Monday and Friday, which are larger than on Saturday (1.9, 1.3); the ratio of grabbing up and down the train are 3.19% and 2.01% at late peak on Monday and Friday respectively. Traffic accidents are trample disaster, fall into orbit, and up and down the door strongly. This paper also finds the layout of security export marks and fire-fighting equipments are unreasonable, and mechanical and electrical failure or load irregularly are exist in Zhongyou and Juntai department store, and there would happen trample disaster, drop, and collision. According to these findings, increasing the number of trains, staff and the radio notice frequency should be taken, which would reduce traffic accidents in the traffic space; Setting safety export (escape) arrow marks and fire distinguisher reasonably and ensuring its numbers, using public fire extinguisher boxes and fire extinguishers, repairing and maintaining mechanical and electrical facilities regularly, and riding with civility should be taken to decrease accidents in commercial entertainment underground space, which are of certain significances to decrease and prevent safety problems in crowded underground space. [Copyright &y& Elsevier]

The social impacts of transport systems and new transport infrastructure have often been overlooked and undervalued, partly because the relationship between transport and social equity is indirect and difficult to quantify. Researchers have usefully investigated the relationship between transport and social exclusion, focusing on aspects such as access to opportunities and activities by different population cohorts such as income, class, age, ethnicity and gender. The analysis has focused on addressing the imbalance in the distributional effects of transport provision and accessibility planning has often been a central tool in analysis. This paper seeks to build on the aforementioned research, employing Amartya Sen's Capabilities Approach as a theoretical framework to explore how an individual's capabilities and functionings differ in relation to transport. Beijing is used as a case study, with analysis from three stations on the Beijing subway line 1 and its extension to the Batong line, namely Guomao, Sihui and Tuqiao. Martha Nussbaum's Central Human Capabilities Approach is used to frame the analysis. The results show that functionings and capabilities differ according to an individual's socio-economic characteristics and geographical location, meaning that both the opportunities to participate in life and also the actual activities themselves differ. This is an important distinction that the Capabilities Approach offers, and it is useful to consider if the potential for achieving improved social equity is to be realised. • The Capabilities Approach is applied in transport planning. • A framework for understanding multi-dimensional social impacts is developed, including issues of life, bodily health, emotion and affiliation. • Comparisons are made for capabilities and functionings across socio-demographic characteristics and location. [ABSTRACT FROM AUTHOR]

Within the context of climate change and population growth, the development of urban agriculture is of great environmental and economic significance in rapidly urbanizing China. Based on the primary survey data, this paper evaluated the carbon footprint (CF) and economic efficiency of urban agriculture in Beijing (China) using the life cycle assessment method (from cradle to consumption approach). Two cases were analyzed and compared considering their differences in on-farm cultivation and off-farm supply chains: a conventional small householder farm that sells its vegetables directly to consumers in a local market, and a large home-delivery agriculture (HDA) initiative that delivers its vegetables to the consumers' home directly. Both cases were equipped with greenhouses with plastic covering but no heating system. The CF of the production, transportation and distribution of 1 kg fresh vegetables was estimated at 0.318 kg CO 2 -eq kg−1 and 0.624–0.652 kg CO 2 -eq kg−1 for conventional and HDA initiative farm, respectively. However, the HDA initiative showed a better environmental performance than the conventional operation when taking economic efficiency into consideration. The CF per unit of profit of HDA initiative (0.093–0.097 kg CO 2 -eq per CNY) was lower than conventional farm (0.111 kg CO 2 -eq per CNY). The lower CF per unit of product weight of the conventional farm was largely attributed to the high yield and the lower CF per unit of profit of the HDA initiative was mainly due to the outstanding economic profitability through income optimization. The major hotspots of CF in both cases were greenhouse plastic films in the cultivation phase (from cradle to farm gate) and transportation in the supply chain (from farm gate to consumption). Simulation of a switch to biodiesel instead of gasoline and diesel in combination with the replacement of current fossil-fuel-dominated electricity by hydro-powered electricity resulted in 20.0–21.8% reduction in the total CF. By identifying the CF hotspots of two farm cases, particular inputs and activities can be targeted for adjustment in order to effectively reduce the CF of urban agriculture in Beijing. [ABSTRACT FROM AUTHOR]

In this paper, we use household travel survey data and employment establishment survey data collected in Beijing to empirically investigate the extent to which institutional arrangements influence the jobs-housing spatial relationship, and whether such arrangements interact with local job opportunities in shaping the jobs-housing relationship. Dynamic buffering is used to derive the number of job opportunities within specific distances of each home. We find that, once individuals have the freedom to choose their workplaces or homes, the "relics" of command-and-control housing provision policies no longer have significant influence on commute distances. We also find that more job opportunities close to homes have significant association with shorter commuting distances. This is especially true for individuals who joined the workforce after 1999. The institutional setup and spatial structure of the jobs and population in Beijing can contribute to this trend. Yet the magnitude of this effect from the job opportunities is nevertheless negligible. • We use large sample of household travel survey and establishment survey data collected in Beijing to empirically investigate jobs-housing spatial relationship and its impact factors, especially institutional factors and job opportunities. • Dynamic buffering is used to derive job opportunities within a specific distance of each home. • By comparing command-and-control housing policies and reformed housing market in China, we find that mandatory housing choice for the workers is a necessary condition to maintain jobs-housing balance. • Without command-and-control housing policies, more job opportunities near homes have negligible though statistically significant effects in reducing commuting distances. [ABSTRACT FROM AUTHOR]

• The improved ecological network analysis emphasizes both upstream and downstream of urban energy metabolic system. • Environ analysis and Ascendency analysis are integrated to analyze the processes and stability of urban energy metabolic system. • Beijing's 2007–2016 energy statistics are applied to reflect the transformation of Beijing's energy metabolic pattern. • Beijing's energy system has been improved through optimization both in supply and demand sides, with stability and risk resistance increased. In this paper, the improved ecological network analysis framework is applied to study the internal metabolic process and external stability of the urban energy metabolism system. Firstly, based on the analysis of ecological network, the sectors are selected from the three stages of urban energy production, transformation and consumption to build an ecological network model. Then, according to the metabolic process and stability characteristics of urban energy system, the Network Environ Analysis and Ascendency are integrated, and the time dimension is expanded. Finally, the data of Beijing from 2007 to 2016 are selected for empirical study. The results show that: (1) the cumulative consumption of raw coal and coal products and natural gas has changed significantly, the former has decreased from 3448×104 tce to 1283×104 tce, and the latter has increased from 560 ×104 tce to 3699×104 tce; (2) the electricity, heat and water production and supply sector consumed the most energy; (3) the energy transfer pathways between sectors has changed significantly. The results of stability analysis show that the overall stability of Beijing's energy metabolism system is increasing year by year, but there is still space for further improvement. This provides an important reference for optimizing the energy utilization structure of Beijing in the future and further promoting clean energy initiatives. [ABSTRACT FROM AUTHOR]

Abstract Elucidating the vertical structures of clouds is key to reducing the uncertainty in cloud-induced climate forcing; however, we do not yet know explicitly about the cloud structures that form over Beijing, China, and how they vary. In this paper, we document vertically resolved cloud structures and their climatological variation based on three-year (1 January 2015 to 31 December 2017) ground-based Ka-band (35 GHz) millimeter-wave cloud radar (MMCR) measurements. Cloud top height (CTH) and radar reflectivity are higher in summer and autumn than in spring and winter. We verified the MMCR measurements of the CTH and cloud base height (CBH) independently based on observations from the Himawari-8 and CL51 ceilometer at the same station, respectively. The CTH decreased as the thickness of the cloud layer increased. This may have been due to the mechanism used to determine the CTH, which was based on data from the satellite infrared channel. There were two peaks in the CBH distribution, located at 0–1 km and 5–6 km, whereas the frequency of the CTH peaked at an altitude of 9–10 km, between 1200 and 1800 LST. Precipitating clouds tended to be located at lower altitudes and exhibited stronger radar reflectivities than non-precipitating clouds. The cloud frequency tended to peak in autumn and reached a minimum in winter. In terms of the seasonality of clouds at various levels, middle- and high-level clouds were dominant over Beijing, with high and low (precipitating) clouds concentrated between May and October. Mid-altitude clouds occurred more frequently in winter and spring. CTH peaked in summer due to the strong solar radiation received by the surface. In contrast, minimum CBH occurred in winter. The cloud heights were higher and radar reflectivities larger than reported in previous studies. These results are correlated with urban warming effects. Understanding the properties of clouds will not only be of benefit to researchers carrying out cloud forcing studies, but will also provide key validation data for climate model simulations. Graphical abstract Unlabelled Image Highlights • The cloud vertical structures in Beijing are elucidated using 3-year observations • Cloud structures from MMCR, Himawari-8 and ceilometer agree with each other very well • Cloud top heights are shown to decrease as the cloud layer thickness increases [ABSTRACT FROM AUTHOR]

The function of rural hous i ng land is an important manifestation of the living needs of farmers. Multifunctional research on rural housing land can provide a scientific basis for the formulation of practical and effective systems of rural housing land. Based on the survey data of 613 typical farmers, this paper identifies each function, analyzes functional spatial distribution features of rural housing land by using the kernel density estimation method, and constructs a multinomial logistic regression model to quantitatively measure the influencing factors and to reveal the mechanism of functional spatial distribution under the combined effect of the "farmers--rural housing land--village" system. This research shows the following: 1) Rural housing land has mainly a social security function(SSF), while a profit function(PF) and a retaining function(RF) have also appeared, with the proportions being 71.78%, 10.60% and 17.62%, respectively in the Pinggu District of Beijing. 2) SSF is strongest in the economically depressed mountainous areas, whereas PF and RF are strongest in the economically developed plain areas and the economically secondary semimountainous area, with the proportions being 77.31%, 15.91% and 22.10%, respectively. Various functions present a spatial gradient change. 3) Agglomeration analysis shows that SSF presents two strong cores: the hilly and mountainous areas in the far north and the plain areas in the suburbs with a better economy, with the "point-surface" distribution. PF concentrated in the tourist spots in the hilly and mountainous areas, the urban belt vicinity with a good economy and the MF industrial park, with the "point-and-belt" pattern. RF focused in the economically secondary semimountainous area and the industrial zone in the southwestern part of the city, showing a "multiband" shape. 4) The function of rural housing land arises from the farmers' needs according to conditions of their own family and rural housing land under the positioning of certain villages. The village characteristics, such as economy, are external factors that present a continuous adjustment effect on the function of rural housing land with the form of long-term action; the characteristics of rural housing land, such as location, are restrictive factors that show two-way feedback effects on the function of rural housing land with the form of foundational action. Both the family characteristics, such as non-agricultural income ratio, and the householder characteristics, such as age, are internal factors that present stage stimulating effects on the function of rural housing land with the form of direct action. 5) Trying to divide the right of use and qualification of RF housing, the right of use of PF housing, through innovating acquisition system of rural housing land and constructing mechanism of rural housing land replaces town security room, which aim to improve the functional efficiency of rural housing land. [ABSTRACT FROM AUTHOR]

Abstract This paper investigates the potential expansion and impacts of Electric Vehicle (EV) market in Beijing, China at the micro level with an agent-based integrated urban model (SelfSim-EV), considering the interactions, feedbacks and dynamics found in the complex urban system. Specifically, a calibrated and validated SelfSim-EV Beijing model was firstly used to simulate how the EV market might expand in the context of urban evolution from 2016 to 2020, based on which the potential impacts of EV market expansion on the environment, power grid system and transportation infrastructures were assessed at the multiple resolutions. The results suggest that 1) the adoption rate of Battery Electric Vehicle (BEV) increases over the period, whereas the rate of Plug-in Hybrid Electric Vehicle (PHEV) almost remains the same; Furthermore, the so-called neighbour effects appear to influence the uptake of BEVs, based on the spatial analyses of the residential locations of BEV owners; 2) the EV market expansion could eventually benefit the environment, as evident from the slight decrease in the amounts of HC, CO and CO 2 emissions after 2017; 3) Charging demand accounting for around 4% of total residential electricity demand in 2020 may put slight pressure on the power grid system; 4) the EV market expansion could influence several EV-related transport facilities, including parking lots, refuelling stations, and charging posts at parking lots, in terms of quantity, layout and usage. These results are expected to be useful for different EV-related stakeholders, such as local authorities and manufacturers, to shape polices and invest in technologies and infrastructures for EVs. [ABSTRACT FROM AUTHOR]

Highlights • The increases of commuting CO 2 emissions are several times larger than the urban size, population, and economics' developments. • Metro services reducing commuting CO 2 emissions near the metro stations is not statistically significant, possibly because the proportions of car users near the metro stations are similar to the two cities' average levels, which is caused by their higher household income and the longer travel time using the metro. • In Beijing, there are the smallest commuting CO 2 emissions in the outer suburbs due to job-housing balances, short distance and large percentage of non-motorized mode uses while the largest commuting CO 2 emissions in the inner sprawl suburbs due to car trips with long distance. Abstract To understand the changing relationships between commuting CO 2 emissions (CCE), travel behavior and urban forms, this paper provides a comparative study between the typical Chinese cities of Beijing (more developed) and Xi'an (rapidly developing). Further, the effects of metro services on reducing CCE were explored, and comparative analysis on CCE between the inner sprawling suburbs and outer suburbs was conducted. It was found that: (i) the increases in CCE are several times larger than the increases in urban size, population, and economic developments; (ii) metro services reducing CCE near metro stations is not statistically significant, maybe because the proportions of car users near the metro stations are similar to the two cities' average levels, which is caused by their higher household income and the longer travel time using the metro; (iii) in Beijing, there are smallest CCE in the outer suburbs due to job-housing balances, short distance and large percentage of non-motorized mode uses while largest CCE in the inner sprawl suburbs due to car trips with long distance. These findings indicate that to cope with the rapidly increasing CCE, more attention should be paid to developing strong industry and real-estate simultaneously; the improvement in the feeder bus and public bicycle systems should also be reinforced to reduce the total travel time of metro users; and satellite cities with job-housing balance are greatly needed. The implications will benefit efforts to reduce CCE and mitigate global climate change, and they also provide empirical evidence and reference values for other global cities. [ABSTRACT FROM AUTHOR]

Abstract The trilemma of economic growth, energy sustainability and environmental protection is facing China's urban sustainable development. In this paper, the ecological network analysis is applied to evaluate the whole metabolic processes of urban energy system. Then, a hierarchy analysis is conducted to diagnose and describe the energy's impacts on the whole energy metabolic processes, and reflect the dynamics and evolution of urban energy metabolic system. Using Beijing as a case study, results suggest that Beijing's strongest energy metabolic flows are electricity→service and electricity→ industrial energy use. Meanwhile, the main inflow to electricity has switched from raw coal in 2008 to natural gas in 2016. The hierarchy analysis indicates that the impacts of Natural gas and other energy are increasing while that of raw coal is decreasing. These results also suggest that Beijing's current achievements on urban energy system optimization mainly rely on structural variation in industries. It is considered that the future optimization should concentrate on promoting clean energy utilization in Beijing. [ABSTRACT FROM AUTHOR]

Abstract Egalitarian thought has a long tradition in Chinese history. Synthesized with the socialist ideology, it was practiced nationwide in the first decades of Communist China. Alongside the well-reported quality of life improvements that the recent economic liberalisation reforms have brought about, Chinese people are experiencing an increasingly serious polarization between the rich and the poor. Consequently, an egalitarian tendency has represented itself within contemporary policy and popular discourse. This paper aims to explore how egalitarian thought has influenced public awareness of social inequities by using the case of public attitudes towards the Beijing congestion charge, which is currently still at its planning stage. Nine focus groups, with a total of 73 participants, were undertaken with residents living in different areas of the city. Results show that the perceptions of social inequities are significantly different between low-income and high-income people. Due to egalitarian thinking, low-income people expect the privileges of the rich to be abolished, however, they do not pay much attention to a wider redistribution of wealth and other social resources. By contrast, richer people tend to deny to a wider population the privileges they themselves received, and, to some extent, they are reluctant to accept policy outcomes that may favour those who are in lower social positions. The resentment against the rich, as another by-product of egalitarianism, considerably exaggerates actual social inequalities, thereby intensifying the feelings of being unequally treated. Highlights • Equity issues of congestion charging in the Chinese context are explored via focus group discussions. • Four types of inequities related to congestion charging are identified. • Chinese egalitarianism influences perceived inequities and intensify the feeling of being oppressed. • Chinese egalitarianism leads to an expectation of privilege deprivation. [ABSTRACT FROM AUTHOR]

Abstract The Weather Research and Forecasting (WRF) model with urban canopy model has been widely used to study atmospheric boundary layer processes and urbanization-related environmental issues. One of the most daunting challenges faced by the integrated WRF/urban modelling system is constraining the uncertainties in urban canopy parameters (UCPs) that represent the urban morphological characteristics. In this paper, we develop a dataset of three-dimensional (3-D) UCPs for Beijing by using vector-format building information in a Geographic Information System (GIS) environment and apply it to the integrated WRF/urban modelling system to investigate the effects of UCPs on the simulated meteorological variables against observations in clear-sky days. Moreover, the role of spatially-varying UCPs involved in the Building Effect Parameterization (BEP) in capturing the heterogeneous characteristics of 2-m surface air temperature and 10-m wind field in the urban areas are evaluated. In general, high-resolution dataset of UCPs improves the model skill in simulating the diurnal variations and spatial distributions of 2-m surface air temperature and 10-m wind speed in the urban canopy, especially for the BEP. WRF/BEP with gridded UCPs dataset shows a better performance in densely built-up areas, where the morphological and physical characteristics of urban surface are complex. It also performs better in capturing the characteristics of urban heat islands (UHIs) and weak wind zones (WWZs) in urban areas. Results show that introducing the 3-D UCPs dataset into the integrated WRF/urban modelling system is a simple and yet efficient way to enhance the modelling capabilities in urban areas and assist urban planners to deal with urban environmental issues. [ABSTRACT FROM AUTHOR]

Abstract Urbanization is an important force driving the development of the social, economic, and ecological environments in urban China. As the capital of China, Beijing has experienced a shift in the development process from emphasizing economic development to emphasizing ecological livability in recent decades. During this period, the Olympic Games, real estate development, and environmentally friendly construction policies were major events that affected Beijing's urban ecosystem and its safety. Based on the Pressure–State–Response (P-S-R) framework model, this paper establishes an indicator system for assessing the ecological security of Beijing from 1995 to 2015. The indicators were generated through coupling of an ecological model with time-series multi-source remote sensing data such as night light images and Landsat ETM images. We assessed ecological security during different policy periods and developed an ecological security early warning system for Beijing. After the effects of the economic development policy and the bid for the Olympic Games from 1995 to 2005, the urban area of Beijing with falling ecological security continues to expand. From 2005 to 2010, due to the joint effect of 2008 Olympic venue construction, urban environmental remediation policies, and real estate policies, the overall safety level in the central city was better, but the suburbs showed the opposite trend. In 2010–2015, real estate developed explosively in Beijing, while environmentally friendly development became strongly emphasized and the economic status of the capital weakened. The ecological security of the main urban area began to improve significantly, but the outer urban area and suburban areas were greatly affected by real estate development and exhibited a clear decline in ecological security. Graphical abstract Unlabelled Image Highlights • New remote sensing ecological security evaluation index for highly developed urban. • Ecological security in urban and suburban of Beijing presented different trends. • Ecological security in Beijing was closely related to the policy. • Urban managers should consider ecological security when making policy. [ABSTRACT FROM AUTHOR]

Abstract Traffic-related air pollution has been one of the major environmental problems in China. It is urgent to explore the urban traffic emission patterns for the low-carbon urban planning and traffic management. With this purpose, a new urban traffic emission analysis model is proposed in this paper. The traffic analysis zones (TAZs) are treated as the analysis unit. Then the spatial and temporal dynamic emission patterns are studied based on taxi GPS data in Beijing. The whole urban area of Beijing is divided into 33 TAZs depending on the feature of road networks. And the trip patterns of TAZs are extracted. The instantaneous emissions of CO 2 , NOx, VOC and PM within and between TAZs are estimated. The relationships between emissions and road densities are studied. The results demonstrated that (1) the highest taxi trips during the day occur at 10:00, 16:00 and 20:00. (2) The variations of the 4 pollutants within and between TAZs are similar. The emissions of TAZs with business centers, entertainment centers and transportation hubs are obviously higher than others. For TAZs within the 5th Ring Road, the northern emissions are stronger than the southern. Emission patterns can be divided into 3 types, corresponding to the time periods of 0:00–3:00, 3:00–6:00 and 6:00–24:00. (3) There is a positive relationship between emissions within and between TAZs and road densities. And when the road densities of TAZs are bigger than 0.6, emissions within TAZs will rise up obviously with the increasing road densities. The policy implications of results include the region function planning, traffic planning, the public transport improvement, optimal design of charging stations and new energy vehicles promotion. [ABSTRACT FROM AUTHOR]

Abstract: Remote sensing has become an important method for monitoring urban thermal environment, but, it is still difficult to analysis the spatio-temporal change of urban thermal environment quantitatively only by ground surface temperature (or brightness temperature). Three indexes on urban thermal environment monitoring are proposed in this paper: heat island intensity, heat field intensity index and heat island proportion index. Based on MODIS surface temperature products and FY3A/MERSI data of two years, urban thermal environment is monitored by remote sensing method in Beijing. The empirical results verify that three indexes proposed in this paper are meaningful in monitoring of urban heat island. It can not only monitor the intensity and changes of the urban heat island in Beijing effectively, but also, it is positive to carrying out meteorological operations in city thermal environment monitoring. [Copyright &y& Elsevier]

Abstract: With the comprehensive development of society and economy in China, rural urbanization is the inevitable trend of rural development. But eco-environmental problems gradually became more and more outstanding during the process of rural urbanization and became the limit factors of rural comprehensive development. On the basis of analyzing the process of rural urbanization in Beijing since new china was founded, the paper made a systemic discussion on the main environmental problems emerged during the process of rural urbanization. This paper provided some references for the sustainable development of rural development in Beijing. [Copyright &y& Elsevier]

Abstract: The economic development model of Mountainous Valley areas was put forward by Beijing government in order to fit in with the needs of ecosystems conserve and socio-economic development in mountain areas. It had achieved remarkable results in practice. The basic content and the problems faced by the model were both described in this paper. Based on theory of regional economic development, the paper proposed the development thought of “multi-point and one line” and “A line with multi-center” space layout and relative safeguard measures of valley areas. This research can provide reference for relevant departments to formulate economic development policies. [Copyright &y& Elsevier]

Abstract: In this paper we give an overview of the situation of CO2 emissions in both Beijing and Tokyo and discuss and compare the causes for their emission changes according to decomposition based on both social activities and fuel varieties. We find that in order to enjoy a sustainable development, Beijing needs to learn from Tokyo especially in energy consumption area. At the end of the paper, the cooperation between these two metropolises is summarized. [Copyright &y& Elsevier]

Abstract: Urban containment policies, including urban growth boundaries, urban service boundaries and greenbelts, have been extensively discussed worldwide for managing urban growth. This paper focuses on the issues associated with supporting an urban containment plan and its application in China using a planning support system. The background is that the urban containment plan has been enacted as a new component of the urban plan under the City Planning Law of the People’s Republic of China. In China, the accommodating or restrictive features are integrated as control factors (CFs), which include control indicators for land-use type control, urban activity control, building height control, as well as underground development control. This paper proposes an urban containment planning support system (UC-PSS) based on ArcGIS for automatically compiling the Beijing urban containment plan considering 60 control factors with various control indicators. The compiled plan was also applied for reviewing urban master and district detail plans in Beijing supported by the UC-PSS. The effectiveness of UC-PSS was comprehensively evaluated from the perspectives of planning compilation and planning review via interviewing urban containment planners (main users of the UC-PSS) in Beijing. [Copyright &y& Elsevier]

Abstract: There is a strong need to explore the determinants of worker’s commuting time as the declines in job accessibility associated with the dramatic growth of commuting time have become a serious negative effect on the quality of urban life in megacities of China. Most well-developed theories exploring change in commuting time are based on neo-classical economic theory. This paper argues however that in the case of China institutional factors of the housing provision system and labour mobility management have been more important. The paper conceptualizes an institutionalist approach incorporating housing and controls over labour mobility and applies it to analyse these influences on workers’ commuting time in Beijing. The analysis shows that the interaction of housing provision, the market system and the Hukou system together have significant impact upon individual commuting time allowing for worker’s annual household income, occupation and transport mode. The findings suggest that the market-oriented housing reforms have changed the local jobs–housing balance that prevailed in pre-reform era and have thus induced growth of commuting time; the remaining the unfair treatment of residents according to their Hukou status may influence the floating worker’s ability to connect housing and workplace opportunities that could reduce commuting time. With respect to future studies, the institutionalist approach seems to be an efficient means of exploring particular factors that emerge in the transformation of an economy. [Copyright &y& Elsevier]

Abstract: The morphology of a city affects its ecological and socioeconomic functions, and thus how a city is spatially structured has important bearings on urban sustainability. The paper analyzes the spatial pattern of Beijing in relation to its urban functions. Our results show that the 6 concentric ring-roads in Beijing provide a basic framework for the city''s overall spatial pattern, and also give its apparent resemblance to the classic concentric zone theory. The paper identifies 5 concentric zones for Beijing based on a suite of urban functions. However, there are significant differences between the urban spatial pattern of Beijing and that depicted in the classic concentric zone theory. The study sheds new light on the urban morphology of one of the major Chinese cities, and provides needed information for developing plans to diffuse urban functions in Beijing. [Copyright &y& Elsevier]

With the specific case of the birth of Tiananmen Square in Beijing during the May Fourth Movement in 1919, this paper tries to give an answer to the more general question of how a political public space is made. It argues, (1) the transformation of the spatial order of Beijing made possible the formation of new modes of collective political action in republican Beijing. (2) The different kinds of action of the people led to the production of a number of political public spaces. (3) The demonstration staged on May 4, 1919 was vital in converting the empty space in front of Tianan Gate into a public space of political significance, which was then named Tiananmen Square. Borrowing from Arendt's conception of the public space and people's political action, this paper contends that the political action of people was most important in breaking through the control of the government and opening up political public spaces. With the historical geographical case of the Square, this paper assesses the “end of public space” position that has become widely accepted in academic debate. [Copyright &y& Elsevier]