Interstate 37 in Texas Interstate Access Justification

Kersavage, Kristin; Hamilton, Ian; VHB/Vanasse Hangen Brustlin, Inc.

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Interstate 37 in Texas Interstate Access Justification

2022-02-01
By Kersavage, Kristin ; Hamilton, Ian

English

Details You May Also Like

Details:

Creators:

Kersavage, Kristin ; Hamilton, Ian

Kersavage, Kristin ; Hamilton, Ian Less -
Corporate Creators:

VHB/Vanasse Hangen Brustlin, Inc.
Contributors:

Roche, Jerry ; Pascual, Sarah Weissman

Roche, Jerry ; Pascual, Sarah Weissman Less -
Corporate Contributors:

United States. Federal Highway Administration. Office of Safety
Subject/TRT Terms:

[+]

Highway Safety Manual Highway Safety Software HSS Interstate Access Interstate Highways Pavement Widening Safety Safety Analysis Traffic Safety
Publication/ Report Number:

FHWA-SA-21-076
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas

United States ; Texas Less -
Edition:

Case Study
Contracting Officer:

Roche, Jerry
Corporate Publisher:

United States. Federal Highway Administration. Office of Safety
Abstract:

This case study presents a safety analysis performed by the Texas Department of Transportation (TxDOT) for an Interstate Access Justification Report. The Interstate 37 (I-37) corridor is an important freight route, critical hurricane evacuation linkage, and the only crossing of the Nueces River within 25 miles. This corridor is part of the National Primary Highway Freight System. US 77, which connects to I-37 at the end of the project area, is a part of the Texas Highway Freight Network. Several planning studies, including the I-37 Corridor Study Report, I-69 to I-410, identified the need for mainline widening and the replacement of the Nueces River Bridge. As a result, TxDOT planned a widening project along this stretch of interstate to accommodate greater traffic demand, necessitating additional travel lanes and several key design changes, including environmentally sensitive alterations to the Nueces River Bridge. TxDOT reviewed the study area’s historic crash frequency and rates to make targeted improvements to the project design. After this review, the TxDOT project team used the Highway Safety Software to predict crashes along I-37 for both a No Build scenario with no changes to the corridor and a Build scenario with proposed capacity, mobility, and safety alternatives. The results indicated that predicted crashes are expected to decrease with implementation of the proposed improvements compared to the existing conditions for both the base (2020) and design (2040) years. Total crashes are expected to decrease by 7.53 crashes (12.8 percent) per year for the base year and by 13.44 crashes (14.3 percent) per year for the design year.
Format:

PDF
Funding:

DTFH61-16-D-00052
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:f2ee5e60430e8591a123a9e0b62e306cf790f84fae68219dde4890ef1bea7ee5
Download URL:

https://rosap.ntl.bts.gov/view/dot/63015/dot_63015_DS1.pdf
File Type:

[PDF-956.21 KB]