Issues in Urban Trip Generation

Currans, Kristina Marie

doi:10.15760/etd.3449

Cited by 2 publications

(2 citation statements)

References 48 publications

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“…Suburban and rural places have significantly different and decreasing impacts on person trips. This is somewhat consistent with the notion put forth by ITE and others that residential person trips should be less variable by urban place type (Currans, 2017;Institute of Transportation Engineers, 2014), unlike the distribution of trips across various modes (including vehicle trips). This consistency across urban areas may be due to people substituting vehicle trips for walk, bike, and transit trips in more urban areas.…”

Section: Resultssupporting

confidence: 88%

Transportation impacts of affordable housing: Informing development review with travel behavior analysis

Howell

Currans

Gehrke

et al. 2018

JTLU

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Abstract:Planning for affordable housing is challenged by development policies that assess transportation impacts based on methodologies that often do not distinguish between the travel patterns of residents of market-rate housing and those living in affordable units. Given the public goals of providing affordable housing in areas with good accessibility and transportation options, there is a need to reduce unnecessary costs imposed by the potential overestimation of automobile travel and its associated impacts. Thus, the primary objective of this paper is to examine and quantify the influences of urban characteristics, residential housing type, and income on metrics commonly used to assess the transportation impacts of new development, namely total home-based trips and home-based vehicle trips. Using the 2010-2012 California Household Travel Survey, we regressed these metrics on urban place type, regionally adjusted income, and housing type, controlling for household size, weekday travel, and home location. The results indicate significant reductions in vehicle trip making with lower incomes and increasing urbanization. These findings support more differentiation of affordable and market-rate housing in the development review process and emphasize the need for development standards to be more sensitive to the characteristics of future residents and location.

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Section: Resultssupporting

confidence: 88%

Transportation impacts of affordable housing: Informing development review with travel behavior analysis

Howell

Currans

Gehrke

et al. 2018

JTLU

Self Cite

View full text Add to dashboard Cite

show abstract

“…This conventional approach often assumes that parking will be free and unconstrained and, in many cases, these methods assume residential parking supply to be “bundled” into housing costs (even though households may absorb the cost as part of housing [ 2, 44 ]). Other limitations—such as small sample sizes and issues with inferring statistically insignificant univariate relationships—have been explored in more detail elsewhere ( 74 ).…”

Section: Discussion Of Conventional Tia Estimation Approachmentioning

confidence: 99%

Linking Residential Parking to Automobile Transportation Impact Outcomes at a Development Level

Currans

Abou-Zeid

Iroz-Elardo

2020

Transportation Research Record: Journal of the Transportation R

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Although there exists a well-studied relationship between parking policies and automobile demand, conventional practices evaluating the transportation impacts of new land development tend to ignore this. In this paper, we: (a) explore literature linking parking policies and vehicle use (including vehicle trip generation, vehicle miles traveled [VMT], and trip length) through the lens of development-level evaluations (e.g., transportation impact analyses [TIA]); (b) develop a conceptual map linking development-level parking characteristics and vehicle use outcomes based on previously supported theory and frameworks; and (c) evaluate and discuss the conventional approach to identify the steps needed to operationalize this link, specifically for residential development. Our findings indicate a significant and noteworthy dearth of studies incorporating parking constraints into travel behavior studies—including, but not limited to: parking supply, costs or pricing, and travel demand management strategies such as the impacts of (un)bundled parking in housing costs. Disregarding parking in TIAs ignores a significant indicator in automobile use. Further, unconstrained parking may encourage increases in car ownership, vehicle trips, and VMT in areas with robust alternative-mode networks and accessibility, thus creating greater demand for vehicle travel than would otherwise occur. The conceptual map offers a means for operationalizing the links between: the built environment; socio-economic and demographic characteristics; fixed and variable travel costs; and vehicle use. Implications for practice and future research are explored.

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Issues in Urban Trip Generation

Cited by 2 publications

References 48 publications

Transportation impacts of affordable housing: Informing development review with travel behavior analysis

Transportation impacts of affordable housing: Informing development review with travel behavior analysis

Linking Residential Parking to Automobile Transportation Impact Outcomes at a Development Level

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