Study of Suitable Route for Waste Collection: Case Study of Tambon Nong O Sub district Administrative Organization

Abstract

Currently, the Nong O Subdistrict Administrative Organization has an average amount of solid waste in its area of responsibility of 5 tons per day and it is likely that the amount will continue to increase as the population expands. While there is no uniform waste collection route plan, waste collection takes many hours a day, resulting in wasted budget and energy costs. This research studied the solid waste collection and transportation system of the Nong O Subdistrict Administrative Organization using linear programming and Lingo. In this regard, the goal was to allocate appropriate solid waste transportation routes and analyze the current costs of solid waste collection of the Nong O Subdistrict Administrative Organization to improve and create more efficient waste transportation routes by considering the cost and efficiency of existing garbage trucks as criteria.

The analysis took into account information on the amount of solid waste, collection points, distance, fuel costs, and maintenance costs using linear and Lingo to reduce costs. Originally, the average cost was 1,036.64 baht per day, reduced to 853.95 baht per day, which saved costs 182.72 baht per day, or equivalent to a cost that could be reduced by 17.62%/day. If calculated throughout the fiscal year, government costs would be reduced by up to 66,692 baht. Based on the above information, it could be concluded that the study on the development of a solid waste collection system using linear programming and Lingo to solve vehicle routing problems could actually reduce transportation distance and costs.