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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gonzalez, Fabio Augusto Afsar, H. Murat Bula, Gustavo Alfredo Prodhon, Caroline Velasco, Nubia |
| Description | Author Affiliation: Bula GA ( ICD-LOSI, Universitéde Technologie de Troyes, Troyes Cedex 10004, France); Prodhon C ( ICD-LOSI, Universitéde Technologie de Troyes, Troyes Cedex 10004, France. Electronic address: caroline.prodhon@utt.fr.); Gonzalez FA ( System and Industrial Engineering Department, Universidad Nacional de Colombia, Bogotá, Colombia. Electronic address: fagonzalezo@unal.edu.co.); Afsar HM ( ICD-LOSI, Universitéde Technologie de Troyes, Troyes Cedex 10004, France. Electronic address: murat.afsar@utt.fr.); Velasco N ( School of Management, Universidad de los Andes, Bogotá, Colombia. Electronic address: nvelasco@uniandes.edu.co.) |
| Abstract | This work focuses on the Heterogeneous Fleet Vehicle Routing problem (HFVRP) in the context of hazardous materials (HazMat) transportation. The objective is to determine a set of routes that minimizes the total expected routing risk. This is a nonlinear function, and it depends on the vehicle load and the population exposed when an incident occurs. Thus, a piecewise linear approximation is used to estimate it. For solving the problem, a variant of the Variable Neighborhood Search (VNS) algorithm is employed. To improve its performance, a post-optimization procedure is implemented via a Set Partitioning (SP) problem. The SP is solved on a pool of routes obtained from executions of the local search procedure embedded on the VNS. The algorithm is tested on two sets of HFVRP instances based on literature with up to 100 nodes, these instances are modified to include vehicle and arc risk parameters. The results are competitive in terms of computational efficiency and quality attested by a comparison with Mixed Integer Linear Programming (MILP) previously proposed. |
| ISSN | 03043894 |
| Issue Number | Pt B |
| Journal | Journal of Hazardous Materials |
| Volume Number | 324 |
| e-ISSN | 18733336 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2017-02-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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