Crash analysis of I-64 closure in St. Louis county.

Bham, Ghulam H.; Manepalli, Uday R.R.; Missouri University of Science and Technology. Dept. of Civil, Architectural, and Environmental Engineering

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Crash analysis of I-64 closure in St. Louis county.

2011-08-01
By Bham, Ghulam H. ; Manepalli, Uday R.R.

[PDF-821.87 KB]

English

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Details:

Creators:

Bham, Ghulam H. ; Manepalli, Uday R.R.

Bham, Ghulam H. ; Manepalli, Uday R.R. Less -
Corporate Creators:

Missouri University of Science and Technology. Dept. of Civil, Architectural, and Environmental Engineering
Corporate Contributors:

United States. Federal Highway Administration ; United States. Dept. of Transportation. Research and Innovative Technology Administration

United States. Federal Highway Administration ; United States. Dept. of Transportation. Research and Innovative Technology Administration Less -
Subject/TRT Terms:

[+]

Accident Analysis Accident Rates Highway Safety Interstate Highways Lane Closure Speed Limits Traffic Diversion Work Zones
Publication/ Report Number:

25-1121-0001-341
Resource Type:

Tech Report
Geographical Coverage:

Missouri
Corporate Publisher:

Mid-America Transportation Center ; Missouri. Dept. of Transportation

Mid-America Transportation Center ; Missouri. Dept. of Transportation Less -
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance;NTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLS;NTL-SAFETY AND SECURITY-Highway Safety;NTL-SAFETY AND SECURITY-Accidents;
Abstract:

On January 2, 2008, the Missouri Department of Transportation (MoDOT) closed significant portions of Missouri Interstate 64

(I-64) in St. Louis County for reconstruction. During the planning stages of this project, the proposal to close all lanes of I-64

was met with public concern regarding the possible safety risks associated with diverting I-64 traffic to adjacent roadways. A

specific concern was the possibility of increased crash rates on roads designated to receive I-64 traffic flow. The following

research was conducted to assess the actual outcomes related to these concerns. Crash analyses and crash rate analysis of 2008

and 2009 crash data were performed. The data were compared to four years of pre-closure crash data. Overall results suggest

no evidence of increased crash rates on roadways adjacent to I-64 resulting from the two-year closure period. The study

indicated that crash rates on 17 roadways were 8.9% below average in 2008 and 14.7% below average in 2009. Crash rates

declined for most freeways, expressways, and major arterials in the surrounding region. Rear-end crashes declined noticeably

from 7,757 in 2007 to 6,728 in 2009.
Format:

PDF
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:a7d450ad53f8a33d0def8c856d2951ac26932f68f08cfc3c270538c3a59456b4
Download URL:

https://rosap.ntl.bts.gov/view/dot/25829/dot_25829_DS1.pdf
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Crash analysis of I-64 closure in St. Louis county.

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