CMF / CRF Details

CMF ID: 9269

Deactivate red-light camera


Prior Condition:  Intersections with Red Run Cameras

Category: Advanced technology and ITS

Study: Effects of turning on and off red light cameras on fatal crashes in large U.S. cities, Hu and Cicchino, 2017

Star Quality Rating:2 Stars  [View score details]
Rating Points Total:50
Crash Modification Factor (CMF)
Adjusted Standard Error:
Unadjusted Standard Error:0.074
Crash Reduction Factor (CRF)
Value:-8.4  (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:7.4
Crash Type:All
Crash Severity:K (fatal)
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:Urban
Traffic Volume:
Average Traffic Volume:
Time of Day:All
If countermeasure is intersection-based
Intersection Type:
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:1998 to 2014
Type of Methodology Used:Regression cross-section
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Jun 17, 2018
Comments:CMF applies to all fatal crashes in large cities (>200,000 residents) and includes deactivations during recession