Safety Evaluation of Flashing Yellow Arrows at Signalized Intersections [techbrief]

Srinivasan, Raghavan; Lan, Bo; Carter, Daniel; Smith, Sarah; Signor, Kari; United States. Federal Highway Administration. Office of Safety Research and Development

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Safety Evaluation of Flashing Yellow Arrows at Signalized Intersections [techbrief]

2020-06-01
By Srinivasan, Raghavan ; Lan, Bo ; Carter, Daniel ; ...

[PDF-209.79 KB]

English

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Creators:

Srinivasan, Raghavan ; Lan, Bo ; Carter, Daniel ; Smith, Sarah ; Signor, Kari

Srinivasan, Raghavan ; Lan, Bo ; Carter, Daniel ; Smith, Sarah ; Signor, Kari Less -
Corporate Creators:

United States. Federal Highway Administration. Office of Safety Research and Development
Contributors:

Amjadi, Roya
Corporate Contributors:

VHB/Vanasse Hangen Brustlin, Inc.
Subject/TRT Terms:

[+]

Crash Modification Factor Crash Modification Function Empirical Bayesian Flashing Traffic Signals Flashing Yellow Arrow Intersection Left-turn Opposite Direction Left Turn Left Turn Phase Low-cost Safety Improvements Phasing Safety Evaluations Signalized Intersections Traffic Safety
Publication/ Report Number:

FHWA-HRT-19-035
Resource Type:

Brief
Geographical Coverage:

United States
Contracting Officer:

Amjadi, Roya
Corporate Publisher:

United States. Federal Highway Administration. Office of Safety Research and Development
Abstract:

This study investigated the safety effectiveness of the flashing yellow arrow (FYA) treatment at signalized intersections. One objective of this strategy was to reduce the frequency of left-turn (LT) crashes, especially those that involve a collision between left turns and vehicles traveling straight through from the opposite direction (also called leftturn opposite through (LTOT) crashes). Many studies have explored the safety effectiveness of FYAs. However, most of them only used data from one State, and the studies that used data from multiple States had limited samples of intersections. It is clear that an evaluation with a large sample of sites from multiple States would provide useful information to practitioners on the effectiveness of this treatment under different circumstances.
Format:

PDF
Funding:

DTFH61-13-D-00001
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:d760955b212fefc594902e6678684f5989ccd22712ab7b471c5c6dfdf2464b0d
Download URL:

https://rosap.ntl.bts.gov/view/dot/49718/dot_49718_DS1.pdf
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Safety Evaluation of Flashing Yellow Arrows at Signalized Intersections [techbrief]

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