CMF / CRF Details

CMF ID: 5477

Install red-light cameras

Description: RLR enforcement cameras

Prior Condition:  Signalized intersection without red-light running cameras

Category: Advanced technology and ITS

Study: Still red light for red light cameras? An update, Hoye, 2013

 
Star Quality Rating:3 Stars  [View score details]
Rating Points Total:105
Crash Modification Factor (CMF)
Value:0.67
Adjusted Standard Error:
Unadjusted Standard Error:0.092
Crash Reduction Factor (CRF)
Value:33  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:9.18
Applicability
Crash Type:Angle
Crash Severity: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:
Traffic Volume:
Average Traffic Volume:
Time of Day:
If countermeasure is intersection-based
Intersection Type:Roadway/roadway (not interchange related)
Intersection Geometry:No values chosen.
Traffic Control:Signalized
Major Road Traffic Volume:
Minor Road Traffic Volume:
Average Major Road Volume :
Average Minor Road Volume :
Development Details
Date Range of Data Used:
Municipality:
State:No state(s) chosen.
Country:
Type of Methodology Used:Meta-regression
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Apr 30, 2014
Comments:Controls for RTM. Sample size is not reported in terms of number of crashes, but meta-analysis is based on 15 individual studies, so it is assumed that the sample size is at least "fair".