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Accessibility-oriented development (AOD) strategies are the extension of transit-oriented development (TOD) strategies but focus more on access to destinations. Adopting AOD strategies can help identify and improve the defects of imperfect TOD construction. Based on AOD strategies, this paper evaluated the comprehensive accessibility to multiple public facilities with the Gaussian-based two-step floating catchment area method (G2SFCA) in the heart area of Chengdu City and further analyzed its equity issues. The comprehensive accessibility analysis proved the efficiency of AOD-based analysis in public resources shortage area determination and TOD level evaluation. The equity analysis indicated that the improvement of equity could not reflect the progress on total accessibility but only rationalize the allocation structure of public resources. Based on the case study, several suggestions for policy-making are given, including the construction of the non-motorized transportation system, adjustment of supply allocation, and comprehensive consideration of equity and accessibility in urban planning. [ABSTRACT FROM AUTHOR]

Rapid population aging has raised the number of elderly residents dramatically, calling out the challenge to provide elders with sufficient and equal urban park spaces in cities with limited land use. Ensuring elders have matched accessibility to urban parks is essential for social sustainability. This study introduces an age-grouped Gaussian-based two-step floating catchment area method (AG2SFCA) to more accurately reflect the urban park accessibility of the elderly and to explore the influence of population aging on residents' accessibility evolution. The applicability and rationality of AG2SFCA are demonstrated through the case study in the Chengdu city center. The results indicate that most elders' urban park accessibility and overall horizontal equity level are overestimated in the previous adjuted 2SFCA approach. There is no unified relationship between residents' accessibility and the population aging condition in their community. However, residents' accessibility is related to the overall aging level of society. Even in the urban core of Chengdu, many elders still have no access to urban parks. The high proximity can help elders maintain their matched accessibility to urban parks despite an aging population. This study enriches the application of 2SFCA-style models and helps provide empirical support to governments, urban planners, and facility operators for targeted decision-making. [ABSTRACT FROM AUTHOR]