2+1 Road With Barrier Evaluation of the Feasibility of Deployment of Swedish 2+1 Road With Barrier in Colorado

Sarchet, Rich; Williams, Jim; Kononov, Jake

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2+1 Road With Barrier Evaluation of the Feasibility of Deployment of Swedish 2+1 Road With Barrier in Colorado

2020-04-01
By Sarchet, Rich ; Williams, Jim ; Kononov, Jake

File Language:

English

Details

Creators:

Sarchet, Rich ; Williams, Jim ; Kononov, Jake
Corporate Creators:

DiExSys, LLC
Corporate Contributors:

Colorado. Department of Transportation. Applied Research & Innovations Branch ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

2-lane B/C Barriers (Roads) Benefits Colorado 2+1 Road Design Construction Criteria Deployment Evaluation Feasibility Analysis Highway Design Implementation Median Barriers Screening Ranked Traffic Safety Two Lane Highways
Publication/ Report Number:

CDOT-2020-05
Resource Type:

Tech Report
Geographical Coverage:

United States ; Colorado
Edition:

Final Report
Corporate Publisher:

Colorado Department of Transportation. Applied Research & Innovations Branch
Abstract:

Deployment of 2+1 Road with Barrier in Colorado certainly has potential to improve safety. How much safety benefit to expect, however, is, so far, somewhat uncertain. The Swedish design is widely implemented and has a record of success, so proposed Colorado Design is substantially based on it, with some modifications recommended to better reflect US driver expectancy. Study developed criteria for identifying locations with potential for implementation, screened Colorado highway network for such locations, identified 11 of them, estimated safety benefits and construction costs and ranked projects by B/C. Existing access is a challenge with introducing median barrier. This report examines proposed project locations including both the existing safety problem and the problem of existing access, and proposes possible resolutions to the access concerns. 2+1 Road with Barrier was found likely to be feasible at all 11 locations, with B/C varying between 1.56 and 9.51.
Format:

PDF
Funding:

318.01
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:bbce0115ee7e5a569e396c337052c0938e1e4bea3e1c40f5f0e00bb7ccb2a5398a0032e6f1a4d406bf395f0cd3b3d8f820b2d38552e8215868f8a52834e698c6
Download URL:

https://rosap.ntl.bts.gov/view/dot/88633/dot_88633_DS1.pdf
File Type:

[PDF - 6.37 MB ]

File Language:

English

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