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Determining locations of charging stations for electric taxis using taxi operation data |
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| Authors: | Joonho Ko Daejin Kim Daisik Nam Taekyung Lee |
| Institution: | 1. Department of Transportation System Research, The Seoul Institute, Seoul, South Korea;2. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA;3. Department of Civil and Environmental Engineering, University of California, Irvine, CA, USA;4. Taxi and Logistics Division, Seoul Metropolitan Government, Seoul, South Korea |
| Abstract: | The adequate provision of charging infrastructure is critical for the effective deployment of electric taxis. This study attempts to locate charging stations for electric taxis reflecting real-world taxi travel patterns identified from taxis equipped with digital tachographs. Data for one week are processed in order to estimate their charge demand. The estimated temporal distribution of charge demand indicates that it varies day-by-day and hour-by-hour. The maximum set covering model is applied for determining the locations of charging stations. The results show that the pre-specified service distance and service coverage rate (defined by the proportion of total demand served) can be critical factors for determining the number and location of charging stations. These factors should be carefully specified by considering the tradeoff between operational efficiency of charging facilities and user convenience. |
| Keywords: | Electric taxis charging facility location problem maximum set covering Seoul |