Examing the Relationship between Urban Design Elements and Pedestrian Route Choice Preference with Stated Chice Experiment
Date Issued
2008
Date
2008
Author(s)
Wang, Chi-Feng
Abstract
Policies creating a friendly transportation for transit or non-motorized modes through the control on urban design or land use pattern have earned their popularity with the name of “humanity-oriented transportation” in Taiwan. However, there is still a fierce debate within the academic circle on the effeteness of these measures. Respecting of this discrepancy, the preference of pedestrian route choice has been analyzed to provide some behavioral evidence about these strategies, including the relative importance of essential urban design elements and their interaction effects.s the facts that there are various urban design elements and they often exist as a mixture in the physical world, both of which cause difficulties on the measurement and classification toward these variables, the preference data was gathered with a stated choice experiment providing simplified walking environment composed of homogenous urban design elements along each alternative route to be chosen. The stated choice experiment established was an ‘unlabelled’ one, which includes two alternatives profiled by nine urban design variables. Another nature of urban design elements inspires the modification of research design as well: computer-aided D-optimal experimental design was adopted to overcome the constraint that many of the variables can only be classified nominally or ordinally.he stated choice experiment was held in May of 2008 with subjects recruited from the intercity bus terminal in Taipei. The result of multinomial legalistic regression confirms that the improvement of urban design elements provides incentives for pedestrians to choose their preferred route. The provision of sidewalk with enough width is the most essential element among all the urban design elements, where the installation of crosswalks and pedestrian signals in crosssections takes the next place. There is no statistically significant interaction effect between different urban design elements; however this conclusion should be examined further owing to the number interactiuon factors that had been examined is constrainted by the original experiment design. In addition to the different degree of influence of every urban design elements on preference of pedestrian route choice behavior, the heterogeneity of preference across individuals with different demography and socio-economic variables is also conspicuous. The age and personal monthly income are the most two variables that can describe this heterogeneity.
Subjects
urban design
built environment
travel behavior
stated preference
stated choice experiment
discrete choice model
multinomial logit model
Type
thesis
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