A hybrid-choice latent-class model for the analysis of the effects of weather on cycling demand. (May 2015)

• Record Type: Journal Article
• Authors: Motoaki, Yutaka; Daziano, Ricardo A.
• Is Part Of: Transportation research. Volume 75(2015)
• Page Start: 217
• Page End: 230
• Publication Date: 2015-05
• Subjects: Discrete choice models -- Discrete heterogeneity -- Latent attributes; Transportation -- Research -- Periodicals; 388.011
• DOI: 10.1016/j.tra.2015.03.017
• Languages: English
• ISSNs: 0965-8564

Abstract

Highlights: We analyze cycling demand using a hybrid choice model with discrete heterogeneity. We estimate effects of route attributes and weather: temperature, rain and snow. We identify two segments based on latent cycling skills and experience. We model external restrictions and physical condition as latent factors. Cyclists with more skills and experience are less affected by adverse weather. Abstract: In this paper we analyze demand for cycling using a discrete choice model with latent variables and a discrete heterogeneity distribution for the taste parameters. More specifically, we use a hybrid choice model where latent variables not only enter into utility but also inform assignment to latent classes. Using a discrete choice experiment we analyze the effects of weather (temperature, rain, and snow), cycling time, slope, cycling facilities (bike lanes), and traffic on cycling decisions by members of Cornell University (in an area with cold and snowy winters and hilly topography). We show that cyclists can be separated into two segments based on a latent factor that summarizes cycling skills and experience. Specifically, cyclists with more skills and experience are less affected by adverse weather conditions. By deriving the median of the ratio of the marginal rate of substitution for the two classes, we show that rain deters cyclists with lower skills from bicycling 2.5 times more strongly than those with better cycling skills. The median effects also show that snow is almost 4 times more deterrent to the class of less experienced cyclists. We also model the effect of external restrictions (accidents, crime, mechanical problems) and physical condition as latent factors affecting cycling choices.