Optimization of the Network of Urban Solid Waste Containers: A Case Study

LORENTE LEYVA, LEANDRO L. ; ROSSIT, DIEGO GABRIEL; HERRERA GRANDA, ISRAEL D.; HERRERA GRANDA, ERICK P. ; IMBAQUINGO USIÑA, WILSON G.; PELUFFO ORDÓÑEZ, DIEGO H.

Communications in Computer and Information Science

Springer Verlag

Año: 2019 vol. 895 p. 578 - 589

1865-0929

This paper presents the results of the optimization of the urban solid waste container network in the urban sector of the Ibarra City, Ecuador by the implementation of an optimization model, which consists of a multi-objective mixed programming model which has been successfully used in the context of recycling in past studies. This model was modified so that possible locations of the containers at each corner of the blocks containing the constructed buildings were considered. As well, a restriction to count the containers to be installed was added. Furthermore, to add robustness to the model, it was also considered the filling of the container based on the density of the deposited waste and the model objective functions ?being, a weighted sum of the cost of the installation of the network along with the average walking distance between users and the assigned containers. The outputs of the model are the total number of containers and a map with the optimal locations of municipal solid waste containers for Ibarra city. The model was implemented in GAMS platform wherein parameters can be permanently viewed so that the results may be updated in case of variations of the initial conditions.