CMF / CRF Details

Presence of crosswalk at signalized intersection (bike crashes)

Countermeasure ID: 2199

Description:

Prior Condition: No Prior Condition(s)

Category: Bicyclists

Study: Assessing Critical Factors Associated with Bicycle Collisions at Urban Signalized Intersections, Oh et al., 2008


Star Quality Rating:	Cannot Be Rated (Insufficient Information)
Rating Points Total:	0

Crash Modification Factor (CMF)
Value:	8.76
Adjusted Standard Error:
Unadjusted Standard Error:

Crash Reduction Factor (CRF)
Value:	-775.83 (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:

Applicability
Crash Type:	Vehicle/bicycle
Crash Severity:	All
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:	All
If countermeasure is intersection-based
Intersection Type:
Intersection Geometry:
Traffic Control:	Signalized
Major Road Traffic Volume:
Minor Road Traffic Volume:
Average Major Road Volume :
Average Minor Road Volume :

Other Details
Included in Highway Safety Manual?	No
Date Added to Clearinghouse:	Dec 01, 2009
Comments:	Only for bicycle-related crashes. Update 2023-06-11: This CMF was derived based on the coefficient reported by the authors in the study. The authors mention a contradicting statement following reporting of the coefficient, i.e., “the presence of crosswalks (correlation coefficient 2.17 and standard error 1.23) was found to be favorable in the prevention of the probability of bicycle crashes at intersections.” There is likely an error with the authors reporting the coefficient as 2.17, which leads to the CMF of 8.76.