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Mangkubumi Yogyakarta area is not only a strategic area in the city of Yogyakarta, which lies on the axis of philosophy, forming the spatial structure of the city of Yogyakarta but also a compact area with building facilities that function as offices, education, trade/services, worship, and settlements. The discourse of developing the site has long been announced as a supporting area for Malioboro tourism, and Tugu station developed into TOD (Transit Oriented Development), among others. In 2019, the research, development research aiming to find an area model supporting the realization of the maximum mobility value was carried out in Mangkubumi area to measure mobility levels in the area, and the results of this study found that the rate of mobility and walkability was 76 and 79 respectively.The method used was a simulation of the Urban Modeling Interface (UMI) software to measure the value of mobility in regional models. The research step used area modeling, which was carried out in eight models. After the simulation, the best model with the highest mobility value was selected. The eight models were made based on the four road network patterns of Morlok’s idea (Grid, Spiral, Hexagonal, and Delta), each of which was designed to be two types, namely, type A and type B. Type A was a form of modeling by conducting interventions focused on residential building facilities, and type B was focused on all area building facilities. The finding of this research was that the best road network pattern was the Delta network pattern after intervening in all building facilities and after carrying out land use by placing residential building facilities at the center of the area and placing other building facilities on edge the area. This simulation resulted in a walkability score of 92 and bike-ability of 92. The score is the highest in the walk score ranking level. A value of 92 means that there are walker's paradise, daily business not requiring a car, and biker's paradise, daily affairs done by cycling.

The beach which is experiencing the current developments in the districts of Bantul is Pantai Baru Pandansimo. This area is an area that has been declared by the Bantul regent as zero waste zone. The development of Pantai Baru Pandansimo will give some impact. Thing that can arises is the environmental pollution from trading activity at restaurants around Pantai Baru Pandansimo. Every restaurant produce washing waste (greywater) had only absorbed into the ground or yard restaurants because do not have access to treatment plant. The main objective of this research is plan alternative system management for greywater that corresponding to Pantai Baru Pandansimo area so can creating sustainable zero waste zone. The results of the analysis obtained that alternative management unit greywater that appropriate and can be used at Pantai Baru Pandansimo is subsurface constructed wetland because easy to understand society and easy maintenance. Application of processing units that had been planned to reduce the BOD load in the amount of 41% depending on the extent of the unit to be used and reduce greywater is discharged into the environment 60% -80% of waste. From calculations obtained, wetland unit dimensions used by the average discharge within one week of 276.25 liters / day is 1 x 0.5 x 0.8 m3 with detention time (td) 0,5 day. Wetland that is used can be used as a park around the culinary of Pantai Baru Pandansimo and can encourage people to be more aware of the concept of zero waste.

A Zero waste management is believed to be one of methods to gain sustainability in urban areas. Take advantages of resources as enough as the needs and process it until the last part to be wasted is a contribution to take care the environment for the next generation. Reduce, reuse, and recycle are three simplesactivities which are until nowadays consideredas the back bone of zero waste. Jonggolgreen city is a new urban area in Indonesia with a 100 ha of surface area zoned as education tourism area. It is an independent area with pure natural resources of water, air, and land to be managed and protected. It is planned as green city through zero waste management since2013. In this preliminary period, a monitoring tool is being prepared by applying a Life Cycle Analysis (LCA) for urban areas [1]. This paper will present an explanatory assessment ofthe zero waste management for Jonggolgreen city. The existing situation will be examined through LCA and afterwards,the new program and the proposed green design to gain the next level of zero waste will be discussed. The purpose is to track the persistence of the commitment and the perception of the necessary innovationsin order to achieve the ideal behavior level of LCA., Ministry of Education, Directorate General of Higher Education, under scheme of International Research Collaboration and Publication year 2014 and 2015. The research title is “Master Plan Consolidation of Jonggol Zero Waste Islamic City within Life Cycle Analysis” under contract no: LPPM-UGM/1010/LIT/2014 date: 5 May 2014 and will be continued in 2015 (the contract is under preparation)

This research develops a monitoring tool for urban plan-process based on Life Cycle Analysis by Lourenço. A special project of urban waterfront revitalization is proposed as a contribution to legitimize the LCA model. This research also proposes the influence and the success key factors of its behavior plan-process.The model is tested through benchmarking for six waterfront cities in South Europe. Bilbao in Spain, Genoa in Italy, and Lisbon in Portugal are considered as the success projects since the urban strategy has a strong link with the urban waterfront area notified by the high intensity of the cycle for each phase. Porto and Viana do Castelo in Portugal are considered as the success projects which have a similar behavior for the action and living phase which might be due to the same project under national policy and the projects touch economic and social opportunity of the people. Aveiro in Portugal shows rupture in the beginning, followed by high intensity in the next period which has similar behavior with ideal behavior of LCA model.This research shows the applicability of LCA Model to monitor waterfront revitalization projects and enables the discussion of conceptual issues related to the legitimizing of LCA and the present contribution. The behavior of urban waterfront area and the time dimension can be monitored and the influenced factors of the behavior can be noticed with the success key factors, those are: Planning: does the urban waterfront become the focus of the city planning? Action: does the project persistence in the design proposal? andLiving: does the urban waterfront touch social, culture and economic of the people activities?.

This research was conducted to determine the conditions and manipulate the acoustic material by the mathematical experiment method the calculations was using a specific formula replacing the value of material acoustic sound coefficient. The focus of this research was analyzing the sound absorption and noise reductions of acoustic materials used in residential arround Adisutjipto airport of Yogyakarta then proceed with the analysis of sound absorption and noise reduction of coconut palm fiber designed acoustic materials based on buiding physical theory.The results show that the low sound absorption and noise reduction of the acoustic material inside the sample chamber was due to the material used had a sound reflector characteristic, so optimize the noise reduction it was needed an additional layer of acoustic material used in the fields. The high sound absorption and noise reduction of the coconut palm fiber desgned materials caused by these materials had sound-absorbing properties. The addition of coconut palm fiber layer for acoustic material could optimize the noise reduction. In addition, the coconut palm fiber acoustic material could be used as an altenative sound dampening material at high frequencies that could potentially reduce the waste of nature. Keywords : Residential, accustics materials, coconut fiber, mathematical experiment.