K (fatal),A (serious injury),B (minor injury),C (possible injury)
Roadway Types:
All
Street Type:
Minimum Number of Lanes:
Maximum Number of Lanes:
Number of Lanes Direction:
Number of Lanes Comment:
Crash Weather:
Not specified
Road Division Type:
All
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:
All
Traffic Volume:
Average Traffic Volume:
Time of Day:
Night
If countermeasure is intersection-based
Intersection Type:
Not specified
Intersection Geometry:
3-leg,4-leg
Traffic Control:
Signalized
Major Road Traffic Volume:
Minimum of 2550 to Maximum of 59000 Annual Average Daily Traffic (AADT)
Minor Road Traffic Volume:
Minimum of 1000 to Maximum of 23333 Annual Average Daily Traffic (AADT)
Average Major Road Volume :
21837 Annual Average Daily Traffic (AADT)
Average Minor Road Volume :
7955 Annual Average Daily Traffic (AADT)
Development Details
Date Range of Data Used:
2000 to 2007
Municipality:
Statewide
State:
NC
Country:
USA
Type of Methodology Used:
Before/after using empirical Bayes or full Bayes
Sample Size (crashes):
286 crashes before, 39 crashes after
Other Details
Included in Highway Safety Manual?
No
Date Added to Clearinghouse:
Aug 01, 2013
Comments:
The study reports CRFs using 3 methods (univariate EB, univariate FB, and multivariate FB). The authors concluded that the multivariate FB gives the most accurate results. The summary statistics are approximations because 4 sites were removed from the final analysis and the final summary statistics were not provided.
You Are Now Leaving the Federal Highway Administration (FHWA) Web Site
You are about to access
Thanks you for visiting
You are about to access a non-government link outside of the Federal Highway Administration (FHWA), U.S. Department of Transportation (DOT). Our Web sites have many links to other organizations, including educational institutions and non-profit associations. Please note: While links to Web sites outside of DOT are offered for your convenience in accessing transportation-related information, please be aware that when you exit DOT Web sites, the privacy policy, including tracking technology, computer security, intellectual property protection and Section 508 of the Rehabilitation Act (accessibility requirements) no longer apply. In addition, DOT cannot attest to the accuracy, relevancy, timeliness or completeness of information provided by linked sites. Linking to a Web site does not constitute an endorsement by DOT or any of its employees of the sponsors of the site or the products presented on the site. For more information, please view DOT's Web site linking policy. To get back to the page you were previously viewing, click the x in the upper right of this box or anywhere outside this box.
[View score details]