CMF / CRF Details

CMF ID: 2964

Implement mobile speed cameras

Description: Implement mobile speed cameras

Prior Condition:  No Prior Condition(s)

Category: Advanced technology and ITS

Study: Safety Effects of Mobile Speed Cameras in Norfolk: No More than Regression to the Mean?, Brenac, 2010

 
Star Quality Rating:2 Stars  [View score details]
Rating Points Total:65
Crash Modification Factor (CMF)
Value:1.09
Adjusted Standard Error:
Unadjusted Standard Error:0.14
Crash Reduction Factor (CRF)
Value:-9  (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:13.9
Applicability
Crash Type:All
Crash Severity:K (fatal),A (serious injury),B (minor injury),C (possible injury)
Roadway Types:Not Specified
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:
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:Rural
Traffic Volume:
Average Traffic Volume:
Time of Day:All
If countermeasure is intersection-based
Intersection Type:
Intersection Geometry:
Traffic Control:
Major Road Traffic Volume:
Minor Road Traffic Volume:
Average Major Road Volume :
Average Minor Road Volume :
Development Details
Date Range of Data Used:1999 to 2003
Municipality:Norfolk County
State:notusa
Country:United Kingdom
Type of Methodology Used:Before/after using empirical Bayes or full Bayes
Sample Size (crashes):145 crashes before, 129 crashes after
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Mar 21, 2011
Comments: