CMF / CRF Details

CMF ID: 430

Permit right-turn-on-red


Prior Condition: No Prior Condition(s)

Category: Intersection traffic control

Study: The Effect of Right-Turn-on-Red on Pedestrian and Bicyclist Accidents, Preusser et al., 1982

Star Quality Rating: 3 Stars
Crash Modification Factor (CMF)
Value: 1.82
Adjusted Standard Error: 0.31
Unadjusted Standard Error: 0.14
Crash Reduction Factor (CRF)
Value: -82   (This value indicates an increase in crashes)
Adjusted Standard Error: 31
Unadjusted Standard Error: 14
Crash Type: Vehicle/bicycle
Crash Severity: All
Roadway Types: Not specified
Number of Lanes:
Road Division Type:
Speed Limit:
Area Type: Not specified
Traffic Volume:
Average Traffic Volume:
Time of Day:
If countermeasure is intersection-based
Intersection Type: Roadway/roadway (not interchange related)
Intersection Geometry: Not specified
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:
Type of Methodology Used: Simple before/after
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Dec-01-2009
Comments: Countermeasure name has been slightly modified for consistency across Clearinghouse