The effects of pedestrian and bicycle exposure on crash risk in Minneapolis

Exposure to risk is a theoretically important correlate of crash risk, but many safety performance functions (SPFs) for pedestrian and bicycle traffic have yet to include the mode-specific measures of exposure. When SPFs are used in the systematic approach to assess network-wide crash risk, the omi...

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Autores principales:	Tao Tao, Greg Lindsey, Jason Cao, Jueyu Wang
Formato:	article
Lenguaje:	EN
Publicado:	University of Minnesota 2021
Materias:	Pedestrian Bicycle; Exposure; Crash risk; Safety performance function; Equity Transportation engineering TA1001-1280 Transportation and communications HE1-9990
Acceso en línea:	https://doaj.org/article/e88358c3ad404116b5c94101987c0a46
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spelling	oai:doaj.org-article:e88358c3ad404116b5c94101987c0a462021-11-12T05:55:33ZThe effects of pedestrian and bicycle exposure on crash risk in Minneapolis10.5198/jtlu.2021.19801938-7849https://doaj.org/article/e88358c3ad404116b5c94101987c0a462021-11-01T00:00:00Zhttps://jtlu.org/index.php/jtlu/article/view/1980https://doaj.org/toc/1938-7849 Exposure to risk is a theoretically important correlate of crash risk, but many safety performance functions (SPFs) for pedestrian and bicycle traffic have yet to include the mode-specific measures of exposure. When SPFs are used in the systematic approach to assess network-wide crash risk, the omission of the exposure potentially could affect the identification of high-risk locations. Using crash data from Minneapolis, this study constructs and compares two sets of SPFs, one with pedestrian and bicycle exposure variables and the other without, for network-wide intersection and mid-block crash models. Inclusion of mode-specific exposure variables improves model validity and measures of goodness-of-fit and increases accuracy of predictions of pedestrian and bicycle crash risk. Including these exposure variables in the SPFs changes the distribution of high-risk locations, including the proportion of high-risk locations in low-income and racially concentrated areas. These results confirm the importance of incorporating exposure measures within SPFs and the need for pedestrian and bicycle monitoring programs to generate exposure data. Tao TaoGreg LindseyJason CaoJueyu WangUniversity of MinnesotaarticlePedestrian Bicycle; Exposure; Crash risk; Safety performance function; EquityTransportation engineeringTA1001-1280Transportation and communicationsHE1-9990ENJournal of Transport and Land Use, Vol 14, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Pedestrian Bicycle; Exposure; Crash risk; Safety performance function; Equity Transportation engineering TA1001-1280 Transportation and communications HE1-9990
spellingShingle	Pedestrian Bicycle; Exposure; Crash risk; Safety performance function; Equity Transportation engineering TA1001-1280 Transportation and communications HE1-9990 Tao Tao Greg Lindsey Jason Cao Jueyu Wang The effects of pedestrian and bicycle exposure on crash risk in Minneapolis
description	Exposure to risk is a theoretically important correlate of crash risk, but many safety performance functions (SPFs) for pedestrian and bicycle traffic have yet to include the mode-specific measures of exposure. When SPFs are used in the systematic approach to assess network-wide crash risk, the omission of the exposure potentially could affect the identification of high-risk locations. Using crash data from Minneapolis, this study constructs and compares two sets of SPFs, one with pedestrian and bicycle exposure variables and the other without, for network-wide intersection and mid-block crash models. Inclusion of mode-specific exposure variables improves model validity and measures of goodness-of-fit and increases accuracy of predictions of pedestrian and bicycle crash risk. Including these exposure variables in the SPFs changes the distribution of high-risk locations, including the proportion of high-risk locations in low-income and racially concentrated areas. These results confirm the importance of incorporating exposure measures within SPFs and the need for pedestrian and bicycle monitoring programs to generate exposure data.
format	article
author	Tao Tao Greg Lindsey Jason Cao Jueyu Wang
author_facet	Tao Tao Greg Lindsey Jason Cao Jueyu Wang
author_sort	Tao Tao
title	The effects of pedestrian and bicycle exposure on crash risk in Minneapolis
title_short	The effects of pedestrian and bicycle exposure on crash risk in Minneapolis
title_full	The effects of pedestrian and bicycle exposure on crash risk in Minneapolis
title_fullStr	The effects of pedestrian and bicycle exposure on crash risk in Minneapolis
title_full_unstemmed	The effects of pedestrian and bicycle exposure on crash risk in Minneapolis
title_sort	effects of pedestrian and bicycle exposure on crash risk in minneapolis
publisher	University of Minnesota
publishDate	2021
url	https://doaj.org/article/e88358c3ad404116b5c94101987c0a46
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The effects of pedestrian and bicycle exposure on crash risk in Minneapolis

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