Estimation of crossing conflict at signalized intersection using high-resolution traffic data : final report.

Liu, Henry X.; Davis, Gary A.; Shen, Shengyin; Di, Xuan; Chatterjee, Indrajit

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Estimation of crossing conflict at signalized intersection using high-resolution traffic data : final report.

2017-03-01
By Liu, Henry X. ; Davis, Gary A. ; Shen, Shengyin ; ...

[PDF-2.02 MB]

English

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Creators:

Liu, Henry X. ; Davis, Gary A. ; Shen, Shengyin ; Di, Xuan ; Chatterjee, Indrajit

Liu, Henry X. ; Davis, Gary A. ; Shen, Shengyin ; Di, Xuan ; Chatterjee, Indrajit Less -
Corporate Contributors:

University of Minnesota. Dept. of Civil, Environmental, and Geo-Engineering ; Minnesota. Dept. of Transportation. Research Services & Library

University of Minnesota. Dept. of Civil, Environmental, and Geo-Engineering ; Minnesota. Dept. of Transportation. Research Services & Library Less -
Subject/TRT Terms:

[+]

Red Light Running Right Angle Crashes Signalized Intersections Traffic Conflicts Traffic Data Traffic Safety
Publication/ Report Number:

MN/RC 2017-08
Resource Type:

Tech Report
Geographical Coverage:

United States ; Minnesota

United States ; Minnesota Less -
Edition:

Final report
Corporate Publisher:

Minnesota. Dept. of Transportation. Research Services & Library
Abstract:

This project explores the possibility of using high-resolution traffic signal data to evaluate intersection safety.

Traditional methods using historical crash data collected from infrequently and randomly occurring vehicle

collisions can require several years to identify potentially risky situations. By contrast, the proposed method

estimates potential traffic conflicts using high-resolution traffic signal data collected from the SMART-Signal

system. The potential conflicts estimated in this research include both red-light running events, when stop-bar

detectors are available, and crossing (i.e. right-angle) conflicts. Preliminary testing based on limited data showed

that estimated conflict frequencies were better than AADT for predicting frequencies of angle crashes. With

additional validation this could provide a low-cost and easy-to-use tool for traffic engineers to evaluate traffic

safety performance at signalized intersections.
Format:

PDF
Funding:

CTS #2015013 ; (c) 99008 (wo) 155

CTS #2015013 ; (c) 99008 (wo) 155 Less -
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:30eb79c4f6c086b125db75e1bb178201973af293d4de6c229bc80b4a50869885
Download URL:

https://rosap.ntl.bts.gov/view/dot/32181/dot_32181_DS1.pdf
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Estimation of crossing conflict at signalized intersection using high-resolution traffic data : final report.

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