In recent years, the compact city concept has become a paradigm of sustainable urban development under the premise that mixed-use, high-density cities can significantly reduce automobile dependency and promote the use of alternative modes. This claim, however, hinges on the existence of a true causal mechanism between the built environment and travel behavior. This study tackled the causality problem by using a propensity score approach but differed from previous studies in that this study relaxed the binary treatment assumption (i.e., urban versus suburban) and assumed a continuous treatment of urbanization level, estimated as a latent variable. Methodologically, the propensity score stratification method used was successful in mitigating residential self-selection bias on estimates of the effect of the built environment on nonwork trip frequency and traveled distance. Overestimation ranges for the direct regression estimates against the estimates stratified on the propensity score ranged from 6% to 36%. Findings suggested the existence of a causal mode substitution mechanism from car to nonmotorized modes given positive increases in the latent score of urbanization level.


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    Title :

    Connection between Built Environment and Travel Behavior


    Subtitle :

    Propensity score approach under a continuous treatment Regime


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2014-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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