期刊
CASE STUDIES ON TRANSPORT POLICY
卷 9, 期 3, 页码 1059-1072出版社
ELSEVIER
DOI: 10.1016/j.cstp.2021.01.014
关键词
Simulation-optimization; Bike-sharing system; Inventory
资金
- CONACYT through PNPC scholarship
Bike-sharing systems offer a healthy and environmentally friendly alternative for public transportation in large urban areas. Ecobici in Mexico City has rapidly grown since its establishment in 2010. To optimize bike inventory, a simulation-optimization framework has been proposed to minimize shortage events.
Bike-sharing systems (BSS) are a healthy and environmentally friendly alternative for public transportation in many large urban areas around the world. In 2010, Mexico City started its BSS, named Ecobici, with 84 stations and reached more than 840,000 trips that year. Ecobici rapidly became a preferred option for many users. By 2019, the number of stations in Ecobici had grown almost 6 times since the first year. In addition, the number of registered trips on 2019 was more than 8.4 million and the number of trips in a weekday were more than 30,000. In order to incentivize the adoption of bike as transportation mode, Ecobici and other BSS need to handle the bike inventory at their stations throughout the day. There are many challenges for optimizing bike inventory in BSS given the complex interdependencies, the non-homogeneous demand flows, and the large-scale scenarios. In this paper, we propose and study a simulation-optimization framework to minimize the number of shortage events (failed bike withdrawals and returns) by setting an adequate bike inventory at each station throughout the day. We propose an efficient modeling approach to simulate large-scale BSS and a simulation-optimization heuristic to optimize bike inventory. The experiments show that these algorithms obtain results with similar quality than other search methods, but in a significant shorter amount of time.
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