Minnesota's I-35 Planning Study

Kersavage, Kristin; 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.

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Minnesota's I-35 Planning Study

2022-02-01
By Kersavage, Kristin

English

Details You May Also Like

Details:

Creators:

Kersavage, Kristin
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:

[+]

Freeways Highway Safety Manual Interchanges Interstate Highways ISATe Rehabilitation (Maintenance) Safety Traffic Safety
Publication/ Report Number:

FHWA-SA-21-077
Resource Type:

Tech Report
Geographical Coverage:

United States ; Minnesota

United States ; Minnesota Less -
Edition:

Case Study
Contracting Officer:

Roche, Jerry
Corporate Publisher:

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

This case study describes the Minnesota Department of Transportation’s (MnDOT's) use of the Enhanced Interchange Safety Analysis Tool (ISATe) as a part of a planning study for an approximately 7-mile segment of Interstate 35 (I-35) in Carlton County. I-35 carries commuter and recreational traffic, and it is a main freight corridor for the area. Most of the bridges in the study area were 45 to 55 years old, and many of the bridges and pavement sections along the corridor were reaching the end of their service life and would require rehabilitation or replacement. This study identified safety, operational, and mobility needs along the corridor and developed alternatives which were then coordinated with upcoming infrastructure replacement projects. The I-35 planning study is an example of incorporating quantitative safety analysis as part of a comprehensive review process. MnDOT's work to obtain stakeholder feedback and analyze existing safety conditions allowed the project team to establish safety as a project need. Additional evaluation of specific needs led MnDOT to develop a suite of alternatives that balanced environmental sensitivity with access and safety. ISATe provided the technical capacity to assess the study area’s baseline conditions based on existing geometrics and traffic, and estimate predicted crashes based on forecast conditions. The benefit-cost analysis provided further confidence that MnDOT's alternatives will be cost effective and will provide a high level of benefit to users of the I-35 corridor.
Format:

PDF
Funding:

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

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:c1db2c495ba9eee0a3c032f555f8ce6760c3de2495ee7caf1fa2c35e2890b86e
Download URL:

https://rosap.ntl.bts.gov/view/dot/63013/dot_63013_DS1.pdf
File Type:

[PDF-3.04 MB]