The effect of travel time variability on route choice decision: a generalized linear mixed model based analysis

Hongcheng Gan () and Yang Bai

Transportation, 2014, vol. 41, issue 2, 339-350

Abstract: The effect of travel time variability (TTV) on route choice behavior is explored in this study. A stated preference survey is conducted to collect behavioral data on Shanghai drivers’ choice between a slow but stable route and a fast but unreliable route. Travel time and TTV are respectively measured by mean and standard deviation of random travel time. The generalized linear mixed model (GLMM) is applied to quantify trade-offs between travel time and TTV. The GLMM based route choice model effectively accounts for correlations among repeated observations from the same respondent, and captures heterogeneity in drivers’ values of TTV. Model estimation results show that, female drivers and drivers with rich driving experience are less likely to choose a route with high TTV; smaller expected travel time of a route increase the probability of its being chosen; all drivers have intrinsic preference for a route with smaller expected travel time, but the degree of preference may vary within the population; TTV on average has negative effects on route choice decision, but a small portion of drivers are risk-prone to choose a fast but unreliable route despite high TTV. Copyright Springer Science+Business Media New York 2014

Keywords: Travel time variability; Route choice; Generalized linear mixed model; Stated preference; Repeated observations; Heterogeneity (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s11116-013-9481-6

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