Efficient vehicles versus efficient transportation. Comparing transportation energy conservation strategies |
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| Institution: | 1. Department of Civil Engineering, Golestan University, Gorgan, Iran;2. Lyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907-2051, USA;1. Transportation Management College, Dalian Maritime University, No.1 Linghai Road, Dalian City, 116026, China;2. Faculty of Management and Economics, Dalian University of Technology, No.2 Linggong Road, Dalian City, 116024, China;1. Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada;2. Intelligent Transportation Systems Research Center, Wuhan University of Technology, Wuhan, Hubei, China;3. Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, Canada;4. McGill University Health Centre, Research Institute, Montreal, Canada;5. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada;1. MOT Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport, School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, PR China;2. Transportation Research Institute (IMOB), Hasselt University, Wetenschapspark 5, bus 6, B-3590 Diepenbeek, Belgium;3. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, PR China;4. MIT Media Lab, Cambridge, MA, United States |
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| Abstract: | This article compares four potential transportation energy conservation strategies using a comprehensive evaluation framework that takes into account how each strategy affects annual vehicle travel, and therefore, mileage-related impacts such as traffic congestion, road and parking facility costs and crash risk. Mileage-related impacts tend to be large in magnitude compared with energy conservation benefits, so even small changes in total vehicle travel can have a large impact on net benefits. Fuel efficiency standards and some alternative fuels cause vehicle travel to increase. Higher fuel taxes cause a combination of increased vehicle fuel economy and reduced mileage. Mobility management strategies cause relatively large mileage reductions and so provide the greatest mileage-related benefits. Conventional evaluation practices often overlook mileage-related impacts and so tend to overvalue strategies that increase vehicle fuel efficiency and undervalue mobility management strategies. |
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