The effects of activity-travel context and individual attitudes on car-sharing decisions under travel time uncertainty: A hybrid choice modeling approach

Jinhee Kim, Soora Rasouli, Harry J.P. Timmermans

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

People's daily decision to use car-sharing rather than other transport modes for conducting a specific activity has been investigated recently in assessing the market potential of car-sharing systems. Most studies have estimated transport mode choice models with an extended choice set using attributes such as average travel time and costs. However, car-sharing systems have some distinctive features: users have to reserve a car in advance and pay time-based costs for using the car. Therefore, the effects of activity-travel context and travel time uncertainty require further consideration in models that predict car-sharing demand. Moreover, the relationships between individual latent attitudes and the intention to use car-sharing have not yet been investigated in much detail. In contributing to the research on car-sharing, the present study is designed to examine the effects of activity-travel context and individual latent attitudes on short-term car-sharing decisions under travel time uncertainty. The effects of all these factors were simultaneously estimated using a hybrid choice modeling framework. The data used in this study was collected in the Netherlands, 2015 using a stated choice experiment. Hypothetical choice situations were designed to collect respondents’ intention to use a shared-car for their travel to work. A total of 791 respondents completed the experiment. The estimation results suggest that time constraints, lack of spontaneity and a larger variation in travel times have significant negative effects on people's intention to use a shared-car. Furthermore, this intention is significantly associated with latent attitudes about pro-environmental preferences, the symbolic value of cars, and privacy-seeking.

Original languageEnglish
Pages (from-to)189-202
Number of pages14
JournalTransportation Research Part D: Transport and Environment
Volume56
DOIs
Publication statusPublished - 2017 Oct 1

Fingerprint

car sharing
Travel time
travel time
automobile
Railroad cars
travel
uncertainty
modeling
car use
spontaneity
experiment
costs
time
effect
decision
Uncertainty
privacy
Netherlands
lack
demand

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Transportation
  • Environmental Science(all)

Cite this

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