@article{ref1,
title="Alternative methods of measuring operating speed of electric and traditional bikes in China-implications for travel demand models",
journal="Journal of the Eastern Asia Society for Transportation Studies",
year="2010",
author="Cherry, Christopher and He, Min",
volume="8",
number="",
pages="1424-1436",
abstract="Travel survey respondents often over- or under-estimate their travel time depending on a number of factors. This research presents 2 methods of measuring average speed and thus travel time. The traditional method, stated travel times from travel surveys are compared and corroborated against measured implied travel time based on a GPS-based floating vehicle study to identify the measurable operating speed. An example of this approach is shown for a survey of 2-wheelers (bicyclists and electric bike users) in 2 cities in China. In these cases, survey respondents report up to 32% higher travel times than what is measured on a floating vehicle study, depending on the case. The implication is that mode choice models calibrated on respondent stated travel time more than triples the effect of travel time compared with a model calibrated on average GPS speed (and inferred trip travel time).<p />",
language="",
issn="1341-8521",
doi="",
url="http://dx.doi.org/"
}