Analysis of the environmental benefits of a motorcycle idling stop policy at urban intersections

Analysis of the environmental benefits of a motorcycle idling stop policy at urban intersections

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Article ID: iaor201111161
Volume: 38
Issue: 6
Start Page Number: 1017
End Page Number: 1033
Publication Date: Nov 2011
Journal: Transportation
Authors: , ,
Keywords: geography & environment
Abstract:

In an attempt to reduce CO2 emissions from motorized transport, the Taiwanese government introduced an idling stop policy for vehicles in early 2007. This paper seeks to quantify the environmental benefits of the policy based on a stated preference analysis. Motorcyclists were surveyed at urban intersections in Taiwan, to identify the amount of time they would be willing to turn off their engines while waiting at traffic lights (the WTO). A contingent valuation framework based on stated preference questions was designed to determine the WTO. Results obtained from the Spike model showed that the average motorcyclist’s WTO is 82 s. In another analysis, in which other variables were taken into consideration, such as the possibility that the policy will be enacted as legislation, the expected WTO increased to 101 s. In both cases, an idling stop policy would have positive environmental effects, reducing gasoline usage by 1021 L per hour and reducing CO2 emissions by 0.56 metric tons per hour at the intersection studied during peak periods.

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