SafeSpeed: Enhancing Work Zone Safety through Speed Enforcement / Impact of Work Zones on Crash Occurrence: A Texas Case Study

Bermudez, Diego; Tao, Tao; Qian, Sean

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SafeSpeed: Enhancing Work Zone Safety through Speed Enforcement / Impact of Work Zones on Crash Occurrence: A Texas Case Study

2025-07-30
By Bermudez, Diego ; Tao, Tao ; Qian, Sean

File Language:

English

Details

Creators:

Bermudez, Diego ; Tao, Tao ; Qian, Sean
Corporate Creators:

Carnegie Mellon University. Traffic21 Institute. Safety21 University Transportation Center (UTC)
Corporate Contributors:

United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Crash Analysis Crash Risk Forecasting Data Analysis Geographic Information Systems High Risk Locations Speed Control Traffic Law Enforcement Traffic Speed Work Zones Work Zone Safety
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Final Report (July 1, 2024 – June 30, 2025)
Corporate Publisher:

Carnegie Mellon University. Traffic21 Institute. Safety21 University Transportation Center (UTC)
Abstract:

Work zones are essential for maintaining and improving road infrastructure. However, their presence can alter traffic conditions and increase the risk of crashes. This research project applies a causal inference method—Regression Discontinuity Design—to examine the impact of work zones on crash risk using multiple data sources from Texas, US. The findings indicate that work zones significantly increase crash risk. Multiple robustness checks confirmed the consistency of this effect. Further heterogeneous impact analysis revealed that the risk is more pronounced on road segments with lower traffic volumes, higher speeds, and shorter work zones. These results highlight the need for targeted safety policies, including enhanced safety measures in low-traffic areas, improved speed management within work zones, and be]er design strategies for shorter work zones.
Format:

PDF
Funding:

69A3552344811
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha-512:1fe70bfc771d4e09549db2d4a959a8c65c04e3f1af9b9d329fb56b331e797d08c7c545128f1f0bb6295cfc26b19f729e9db8b5837856544d79accff7daeec37d
Download URL:

https://rosap.ntl.bts.gov/view/dot/85714/dot_85714_DS1.pdf
File Type:

[PDF - 1.76 MB ]

File Language:

English

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