Measuring environmental performance of urban freight transport systems: A case study
Environmental sustainability is a requirement for modern urban freight transport systems. On a global scale, most resources are currently consumed in cities, contributing to the economic importance of urban freight transport as well as its poor environmental performance. However, there is a lack of...
| Autores: | , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Recursos: | Universidad de Navarra |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/119410 |
| Acesso em linha: | https://hdl.handle.net/10171/119410 |
| Access Level: | acceso abierto |
| Palavra-chave: | Urban freight transport Goods transportation Environmental performace Optimization Urban logistics |
| Resumo: | Environmental sustainability is a requirement for modern urban freight transport systems. On a global scale, most resources are currently consumed in cities, contributing to the economic importance of urban freight transport as well as its poor environmental performance. However, there is a lack of knowledge about how to correctly quantify the environmental efficiency of urban freight systems. In this context, this paper proposes a new methodology for evaluating the environmental performance of urban freight transport systems by applying the Overall Greenness Performance (OGP) tool. OGP is a lean-based hierarchy of metrics that uses the value-added concept to relate a company's productivity with its environmental performance. The proposed methodology uses a mixed-integer linear programming model to assess the environmental impact of the activities and/or requirements in an urban freight transportation system. This paper examines how company context, the supply chain and value stream activity types, namely value adding, necessary but non-value adding and nonvalue adding, affect a system's performance, operational costs and environmental impact. Real data from the city of Bogota, Colombia, were used to validate this approach. A sensitivity analysis was performed with different companies, demands and costs in order to evaluate the trade-offs between economic performance and environmental impact. |
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