Traffic Safety Evaluation of Signalized Intersections with Retroreflective Backplates in Minnesota

Moreland, Max; Leuer, Derek; DeVoe, Eric; Mwangi, Ryan

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Traffic Safety Evaluation of Signalized Intersections with Retroreflective Backplates in Minnesota

2024-01-01
By Moreland, Max ; Leuer, Derek ; DeVoe, Eric

File Language:

English

Details

Alternative Title:

Traffic Safety Evaluation of Retroreflective Signal Backplate Borders at Signalized Intersections in Minnesota
Creators:

Moreland, Max ; Leuer, Derek ; DeVoe, Eric ; Mwangi, Ryan
Corporate Creators:

Minnesota. Department of Transportation. Office of Traffic Engineering
Corporate Contributors:

Minnesota. Department of Transportation. Office of Research & Innovation
Subject/TRT Terms:
Publication/ Report Number:

2024-04
Resource Type:

Tech Report
Geographical Coverage:

Minnesota ; United States
Edition:

Final Report
Corporate Publisher:

Minnesota. Department of Transportation
Abstract:

Between 2016 and 2021, MnDOT installed retroreflective signal backplate borders at 116 signalized intersections in Minnesota. Retroreflective signal backplate borders are intended to further increase visibility of the signal head both during the day and at night. The goal of installing retroreflectivity to backplates is to reduce crashes at the intersection by drawing more attention to the current phase of the signal. Backplates with retroreflective borders are listed as a Federal Highway Administration Proven Safety Countermeasure with a listed safety benefit of a 15% reduction in total crashes. With the installation of retroreflective signal backplates on MnDOT signals, the changes in crash rates were not found to be statistically significantly different from similar locations that did not have retroreflective signal backplates. These results indicate there has been little impact on crash rates in the few years after the installation of retroreflective signal backplates.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/73839/dot_73839_DS1.pdf
File Type:

[PDF - 2.12 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:e52c435db2980d70ad675b59a820fb71265960d1472fc1b7bfed16bcbdf96833a5fcdc0b05ff1197f9d832a4d61fae1531f25e1cb08db7614f53c4ab95fc476e

File Language:

English

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