Browsing by Subject "Portland, Oregon"

Now showing 1 - 2 of 2
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    Additional detail in aggregate integrated land-use models via simulating developer pro forma thinking
    (Journal of Transport and Land Use, 2018) Johnson, Jerry; Frkonja, Jeff; Todd, Maribeth; Yee, Dennis
    This paper describes an enhancement to MetroScope, the land-use model component of an integrated model suite used to answer current- and next-generation policy questions facing Oregon Metro (the Portland regional planning organization) and other public agencies. The enhancement is designed to simulate more-detailed housing developer decision processes within an overall aggregate spatial equilibrium model (SEM) framework via a pro forma paradigm. The paper enumerates the policy questions that motivated the enhancement, discusses the integrated model framework, briefly reviews levels of detail available in existing models as context, and frames potential future research directions for additional decision process detail that would be helpful in the consumer modules of the model and potentially other SEMs currently in use.
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    Do people’s perceptions of neighborhood bikeability match “reality”?
    (Journal of Transport and Land Use, 2017) Ma, Liang; Dill, Jennifer
    Do people perceive the built environment the same as we objectively measure it? If not, what are the relative roles of the objective versus the perceived environment on bicycling behavior? This study, based on data from Portland Oregon, explored the match or mismatch between the objective and perceived bicycling environment, and how it affects people’s bicycling behavior. The descriptive analysis indicated a fair agreement between perceived and objective measures. Older adults, women having children, less-educated and lower-income persons, and those who bicycle less tended to perceive their high-bikeable environment (measured objectively) as low-bikeable. In addition to the socio-demographics, this study also found social environment can play a role in the relationship between objective and perceived environment. Finally, results of this study indicated that actual and perceived built-environment both are associated with the bicycling behavior, particularly for utilitarian bicycling. For recreational bicycling, the objective environment attributes measured in this study are not significant factors, while the perceptions do matter.