Abstract
This paper presents a method for optimizing the household waste collection system supported by Geographical Information System (GIS) tool for the sector 1of district El Bousten of Sfax commune, Tunisia. The ArcGIS Network Analyst based model is applied for the purpose of improving the collection process effectiveness, namely, the household collection bins’ reallocation along with the vehicles’ tour optimization procedure in terms of distance and time. Results indicated a reduction of 25, 83% in route and 21, 5 % in the time spent of collection along with fuel consumption savings. These findings show that GIS based model tends to exhibit significant improvements as to the collection and transportation system, therefore, to its economical and environmental costs.
Highlights
Waste management is a global environment issue, which constitutes a very significant problem in today’s world
Integration of Geographic Information System (GIS) technology with solid waste management has been recognized as one of the most promising approach to automate the process of planning and better management of solid waste management5-6 .Optimization of waste collection and transportation making use of the novel tools offered by spatial modeling techniques and GIS may provide large economic and environmental savings through the reduction of travel time, distance, fuel consumption and pollutants emissions7, . 8,9,10,11,12
Spatial Database development The geodatabase was constructed using the GIS environment of ArcGIS (ESRI).The main sources of the spatial database (SDB) are urban development plan, maps digitized in ArcGis10.1, satellite images (Google Earth), municipal and statistical services data, data derived from field work and literature data and the company responsible for the waste collection service
Summary
Waste management is a global environment issue, which constitutes a very significant problem in today’s world. Since improper waste management places inhabitants at risk, urban waste management is presently receiving greater attention from municipalities in developed and developing countries because of its impact on public concern for the environment[1,2,3].There is a considerable amount of waste disposal without proper segregation, which is leading to both economic and environmental problems.The collection and transport of household wastes are among the most important factors in the management of wastes, representing a major part of the budget It is essential for a lasting management to reduce in the first hand the impact on the environment and on the other hand to minimize the cost of collection and transport. The Network Analysis toolbox of the ArcGIS software is utilized to evaluate the optimal waste collection routes
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