How many Urban Recycling Centers do We Need and where? A Continuum Approximation Approach (2016)

Title

How many Urban Recycling Centers do We Need and where? A Continuum Approximation Approach

Publication Type

Journal Article

Year of Publication

2016

Authors

Soto, J.; Muñoz, J.C. and Giesen, R.

Journal Title

Transportation Research Procedia

Keywords

Recycling Centers Location; Waste Collection; Reverse Logistics; Continuum Approximation method; Logistics Network Design; Urban logistics

Abstract

This article presents a methodology that uses the continuum approximation approach to formulate the logistical problem of determining the number and location of recycling centers to which individuals in a region can deliver solid wastes to be recycled. To solve the proposed problem a two-stage approach is proposed. First, we solve an optimization problem whose main decision variable is the density of recycling sites per unit area. This problem is solved assuming that local conditions are similar throughout the region of interest. So, this problem is solved for each point of a grid that divides the region under study, yielding an optimal solution that reflects an approximation of the local optimum density. In the second stage, the solution is refined by identifying specific locations in which recycling centers could be installed, in a manner consistent with the approximate solution obtained in the first stage. Finally, this proposed approach is tested in a case study using data from Santiago, Chile.

DOI

https://doi.org/10.1016/j.trpro.2016.02.038

Corresponding Author

Ricardo Giesen, Email: giesen@ing.puc.cl

Line (s) of Research

Access and Mobility