EQUATION MODEL FOR MUNICIPAL SOLID WASTE COLLECTION AND TRANSPORTATION IN MANADO CITY

Abstract

This study aimed to obtain an equation model of the collection and transportation of Municipal
Solid Waste (MSW) in Manado City, North Sulawesi. Common problems typically encountered in a system of
waste management are, in particular, the vehicle routing, the loading capacity of the vehicle, travel time, the
working time per day, and high operational costs. The methodology used in data retrieval is direct observation.
Meanwhile, to create MSW collection and transportation equation model, drawing logical paths and pathways
are made. After that, continue by defining the problem, setting goals, assigning functions as influential factors,
making notations. To apply the equations, C ++ is used with a Codeblock editor. Three scenarios were
developed in which scenario 1 uses an individual pattern directly, scenario 2 uses a pattern combination
between individual directly with the communal directly, and scenario 3 uses a communal pattern directly. The
analysis results show that scenario 3 produces a smaller value than scenarios 1 and 2. The number of vehicles
required for scenario 3 is 45, and the number of routes per year is as high as 45,000. The distance is 674,172
km/year and the travel time is 120,242 hours/year. The conclusion is that optimization of travel time is
proportional to the distance and operating costs as well as environmental costs. The operation of TPS3R, which
facilitated by the government and managed by the community, requires active community involvement. Waste
is reduced significantly, and the use of waste carrier vehicles is also reduced because the travel time and mileage
decrease. The operational costs of waste management also decrease.