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Title:

Informing the Transportation Impacts of Affordable Housing with Trip Generation Analysis Using Travel Survey Data

Accession Number:

01663962

Record Type:

Component

Abstract:

Planning for affordable housing is challenged by development policies that assess transportation impacts based upon methodologies that often do not differentiate 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 burdens and costs imposed by the potential over-estimation 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. Total home-based trips and home-based vehicle trips are used in trip generation analysis to compute impact fees and transportation impact analyses and thus are the outcomes of interest. Using the 2010-2012 California Household Travel Survey, the authors 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 the future residents and location.

Supplemental Notes:

This paper was sponsored by TRB committee ADD30 Standing Committee on Transportation and Land Development.

Report/Paper Numbers:

18-05489

Language:

English

Authors:

Howell, Amanda
Currans, Kristina M
Norton, Gregory
Clifton, Kelly J

Pagination:

6p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

References

Subject Areas:

Highways; Planning and Forecasting; Public Transportation; Society

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-05489

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 11:24AM