CMF / CRF Details

CMF ID: 11296

Convert Traditional or Flush Buffered Bike Lane to SBL with Flexi-posts


Prior Condition:  Traditional or Flush Buffered Bike Lane

Category: Bicyclists

Study: Developing Crash Modification Factors for Separated Bicycle Lanes, Dixon et al., 2023

Star Quality Rating:4 Stars  [View score details]
Rating Points Total:110
Crash Modification Factor (CMF)
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:53.2  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Type:Vehicle/bicycle
Crash Severity:
Roadway Types:Not specified
Street Type:Not Specified
Minimum Number of Lanes:
Maximum Number of Lanes:
Number of Lanes Direction:
Number of Lanes Comment:
Crash Weather:Not specified
Road Division Type:All
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:Urban
Traffic Volume:
Average Traffic Volume:
Time of Day:Not specified
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:2015 to 2019
Municipality:Cambridge (MA), San Francisco (CA), Seattle (WA)
Type of Methodology Used:
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Jun 26, 2023
Comments:The after condition is SBL with Flexible Delineator Posts.