Countermeasures With Promise (CWIP) - Left Turn Protection

Details

• Creators:
  Hauer, Ezra
• Corporate Creators:
  Felsburg, Holt & Ullevig
• Corporate Contributors:
  Colorado. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Countermeasures
  • Exclusive phasing
  • High risk locations
  • Highway safety
  • Implementation
  • Left turn phase
  • Safety management
  • Signalized intersections
  • safety improvements
  • high-accident sites
• Publication/ Report Number:
  CDOT-2006-19
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Colorado
• Edition:
  Final Report
• Corporate Publisher:
  Colorado. Department of Transportation
• Abstract:
  An important task in road safety management is to monitor where accidents occur on the road system and to assess whether safety at the high-accident sites can be cost-effectively improved. The weak point of the customary process is that the list of high-accident sites is prepared without considering what countermeasures, if any, could apply at the sites on the list. An alternative approach is the 'Countermeasures with Promise' (CWiP) process, which involves choosing countermeasures known to be effective and then seeking sites where these could be implemented to best effect. The countermeasure chosen for examination in this study was that of changing left-turn phasing at signalized intersection to 'Protected' phasing. The target accidents were those involving left-turning vehicles. Several ranked lists were produced.
• Format:
  PDF
• Funding:
  90.70
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93113/dot_93113_DS1.pdf
• File Type:
  [PDF - 3.47 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:2addf215d96d00bdcda2b7ed57bf1c59d938b30e72f0fd747cd978f279769f284e53f79f5de2a65660de63ec3c2b7880cfc5d5db0059efaf56a0da5fa9b46d87