A utility-based bicycle speed choice model with time and energy factors
This paper presents a utility-based behavioral model of bicycle speed choice. A mathematical framework is developed with travel time, energy expenditure, and control factors. Observational speed data are used to calibrate the model and estimate marginal rates of substitution between energy expenditure and travel time. The model is validated by applying it to predict speed changes on pedal-assist electric bicycles. This paper lays a foundation for further development of operational active travel speed and joint speed-route choice models, which can lead to more sensitive and behaviorally-grounded operations, microsimulation, and mode choice models. In addition, the findings have implications for modeling the effects of emerging bicycle technologies. Further research is needed to calibrate the model for a broad population of travelers.
KeywordsBicycles Electric bicycles Energy expenditure Speed choice Safety Utility maximization
We are grateful to three anonymous reviewers for useful comments. Financial support from the Social Sciences and Humanities Research Council of Canada (Grants 435-2014-2050 and 430-2016-00019) is gratefully acknowledged. Some of the findings reported in this article were originally presented at the Transportation Research Board Annual Meeting.
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