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

Details

• Creators:
  Bham, Ghulam H. ; Manepalli, Uday R.R.
• 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
• Subject/TRT Terms:
  • Interstate highways
  • Lane closure
  • Highway safety
  • Accident rates
  • Accident analysis
  • Work zones
  • Speed limits
  • Traffic diversion
• Publication/ Report Number:
  25-1121-0001-341
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Mid-America Transportation Center ; Missouri. Dept. of Transportation
• 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
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25829/dot_25829_DS1.pdf
• File Type:
  [PDF - 821.87 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:6c0b1a70c8aec72c08b0de65682f3a60e0c4b695e1c2265e456391fe16e7aff7a0007d865c105694526e41d65c31350fe1bde7d3e3df983dc002587d44e94575