Development of a Routing Model for Managing of Web-Based GIS Municipal Solid Waste Fleet

Allocating the largest share of waste management costs to the collection sector on the one hand, and the necessity for operational efficiency of this system by reducing the spent time on the other hand, highlights the importance of optimization of waste collection and transport system as a principle in waste design and management. The importance of this issue is that even little improvement in the collection system could have a considerable impact on reducing total costs. Therefore, in order to develop a management system for (fleet collection and transportation), this paper presents an appropriate model for vehicles (truck) routing that determines the appropriate truck route, timetable, starting point, destination, and routes of each truck. The main innovation of this paper is the application of WebGIS and the development of optimal routing for waste collection vehicles with an emphasis on spatial parameters and features. To obtain an appropriate answer, routing vehicles with limited waste collection capacity were used in order to minimize the travel time and consider limiting parameters including, 1- maximum total allowable travel time and 2 – maximum allowable covered distance of vehicles. With the aim of optimal management of waste collection, features such as the amount of waste in each trash bin, the amount of time required to discharge each trash bin, the direction of network traffic, vehicle operating hours, road speed limits, time impedance and distance impedance of each edge were considered. The results show that in comparison to the current fleet, the proposed approach reduces travel time, distance, and fuel consumption by 14%, 24%, and 35%, respectively. User satisfaction with the WebGIS was also assessed indicating that 89% of the users are satisfied with this system.