| 1. |
- Carlsson, Fredrik, 1968, et al.
(författare)
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Reducing the gap between stated and real behavior in transportation studies: The use of an oath script
- 2017
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- We investigate whether taking an oath in a survey situation affects respondent behavior in choice experiments with a focus on travel time, comfort, and cost. We conduct two studies in Beijing: one with car commuters and one with public transport commuters. Overall, we find little difference in behavior between responses with and without an oath. In fact, the only difference is that responses are more internally consistent in the version with an oath script: the respondents trade off money in terms of a fuel cost and in terms of a congestion charge in the same way. However, there is no statistically significant effect on marginal willingness to pay for any of the attributes.
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| 2. |
- Yin, Hang, 1984
(författare)
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Value of commuting time saving in Beijing: a stated preference study
- 2018
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- We estimate the value of travel time savings with a discrete choice model using data from choice experiments on both car drivers and public transport users in Beijing. We find that, compared with public transport users, car drivers would be willing to pay more to save one hour during their commute; crowding inside the bus and subway carriage is very important for public transport users; the value of time saving is higher in the morning than in the evening; and the marginal willingness to pay for commuting time savings varies according to gender, income, education, and time flexibility. Moreover, we compare results from a model addressing attribute non-attendance and a standard model. The results from the model addressing non-attendance are more plausible, with higher consistency in estimated parameters and lower standard deviations.
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