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Eco-driving for transit: An effective strategy to conserve fuel and emissions

Yanzhi Xu, Hanyan Li, Haobing Liu, Michael O. Rodgers and Randall L. Guensler

Applied Energy, 2017, vol. 194, issue C, 784-797

Abstract: Eco-driving is one of the many options to reduce fuel consumption and emissions from transit operations. However, it is not yet clear how effective eco-driving is for different transit service and fuel types. As policymakers consider implementing eco-driving, they also need comparisons of eco-driving against other fuel-conserving strategies, such as purchasing alternative fuel vehicles. Using a case study of transit operations in Atlanta, Georgia, United States, this paper evaluated eco-driving for two very different service types – local urban service and express service. The authors simulated the implementation of transit eco-driving strategies using an innovative, streamlined algorithm designed to minimize fuel consumption by limiting instantaneous vehicle specific power while maintaining average speed and conserving total distance. Fuel consumption and fuel-cycle emissions were compared across the monitored driving cycles and their modified eco-driving cycles. The savings from eco-driving were also compared to fuel and emissions reductions expected via the conversion of the transit fleets to compressed natural gas (CNG), another popular fuel conservation strategy. The results showed that eco-driving would be a potentially very cost-effective strategy for local and express bus transit operations.

Keywords: Bus; Eco-driving; Alternative fuel; Energy; Greenhouse gas; Air pollutants (search for similar items in EconPapers)
Date: 2017
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