CMF / CRF Details

CMF ID: 11282

Install contrast pavement markings

Description: Contrast pavement markings provide improved lane line visibility on light-colored roadways. This includes two common designs: bordered, where a black edge is placed on both sides of a typically white line, and lead/lag, where a contrast/dark strip follows a white strip.

Prior Condition:  No Prior Condition(s)

Category: Delineation

Study: Crash Modification Factors for Contrast Pavement Markings on Light-Colored Pavement, Williamson, M. and S. Singh, 2022

 
Star Quality Rating:2 Stars  [View score details]
Rating Points Total:55
Crash Modification Factor (CMF)
Value:0.88
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:12  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type:Run off road,Sideswipe
Crash Severity:All
Roadway Types:Not specified
Street Type:
Minimum Number of Lanes:
Maximum Number of Lanes:
Number of Lanes Direction:Both Directions
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 and suburban
Traffic Volume:
Average Traffic Volume:
Time of Day:
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:
Municipality:
State:CA,IL,IA,PA,TX,VA
Country:USA
Type of Methodology Used:
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Jun 11, 2023
Comments:CMF for contrast pavement markings 6-lane roadway, no Standard errors for the estimated CMF was provided in the study.