Integration of Alternating Heuristic Algorithm and Geographic Information System for Optimal Allocation of Open Spaces
Not very long ago Dhaka, the capital of Bangladesh, possessed an image of a city of greenery and water bodies. But at present, it is a usual fact that the communities of Dhaka City are deprived of open spaces. Although Dhaka City is expanding into new areas, it has been suffering from inadequate provision of open spaces and the growth in housing sector has not been followed by proportional growth in urban facilities, and consequently, the ratio of open spaces to constructed area is far below the planning standards. There is no uniformity in planning standard and spatial distribution of open spaces within Dhaka City. The planning standards only specify the area required and seldom specify where the open spaces should be located. A Location-allocation Model (Alternating Heuristic Algorithm) can be applied to determine optimal allocation of open spaces. In this paper, the integration of Geographic Information System (GIS) and Location-allocation Model is used for optimal allocation of open spaces at Uttara model town considering all aspects of spatial planning such as accessibility maximization (minimum travel distance), capacity constraints of the open space, land suitability for the open spaces, and dynamic nature of the location of open spaces (assuming the stationary nature of demand points). Uttara model town is preferred as a case study as it is a newly developed town believed to comprise of all planning standards and it has better opportunity to implement optimal allocation of open spaces. This study concludes that 500-meter buffer zone of the existing location of open spaces is 3,893,543 sq. m. which will increased by 2.11% after deriving the 500-meter buffer zone of optimally allocated open spaces based on the standard requirements. The optimal solution space, generated by the integration of GIS and location-allocation model, can be further used for spatial planning of other public facilities such as schools, hospitals, clinics, markets and fire stations.
||GIS, Location-allocation, Land Suitability, Accessibility, Capacity Constraints, Planning Standards
The International Journal of the Constructed Environment, Volume 3, Issue 2, pp.111-128.
Article: Print (Spiral Bound).
Article: Electronic (PDF File; 1.369MB).
PhD Student, Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada
Mr. Amin is a PhD student and Research Assistant in the Department of Building, Civil & Environmental Engineering at Concordia University. He is also a part-time Research Assistant in a research project of Professor William Reimer (Professor Emeritus, Department of Sociology, Concordia University). Mr. Amin has research interest on the integration of land use and transportation modeling, and dynamic transport infrastructure asset management system. Prior to commencing his PhD study at Concordia University, Mr. Amin was a PhD researcher in the School of Built Environment (University of Ulster, UK), an Assistant Professor in urban and regional planning discipline at a university in Bangladesh, and a Transport Consultant of the District Towns Infrastructure Development Project in Bangladesh. Mr. Amin is affiliated with different professional, research and student organizations in North America and Bangladesh. He has been awarded Alain Lamoureux award 2013, Canada Steamship Lines Inc. Award in Transportation Studies 2013, and Graduate Student Paper Award in the TRANSLOG Conference 2012 during his ongoing doctoral research work. Both in his academic and professional career, Mr. Amin has conducted some multidisciplinary research works in the fields of urban and regional planning, civil engineering and social science.
Assistant Professor, Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, Canada
Dr. Amador joined the Department of Building, Civil and Environmental Engineering as an Assistant Professor in 2010. He earned his Ph.D. degree in Civil Engineering at the University of New Brunswick in 2010, a Master’s in Business Administration in 2006 and two Bachelors; one in Civil Engineering (2002) and another one in Business Administration (1997) from Universidad Fidelitas in Costa Rica. Former Member of the Board of Directors of Costa Rica Roads Administration (CONAVI). Worked as Director of Engineering Services and Community Planning at the Urban Municipality of Kindersley in Saskatchewan, and as Director of Technical Studies for the Costa Rica Construction Association. He was a lecturer for about three years at Universidad Fidelitas (2002 to 2005). He also lectured at the University of New Brunswick (UNB) during fall 2008. His expertise is in the areas of Pavement Engineering and Transportation Asset Management. He also has professional experience in Structural Design, Policy Analysis and Municipal Engineering.