CMF / CRF Details

CMF ID: 3092

Install bicycle boulevard

Description: Bicycle boulevards are two-way streets with one travel lane and one parking lane in each direction and incorporate signage, pavement markings, and special bike connections.

Prior Condition: No bicycle boulevards, but many traffic calming devices were preexisting.

Category: Bicyclists

Study: Cyclist Safety on Bicycle Boulevards and Parallel Arterial Routes in Berkeley, California, Minikel, E., 2011

Star Quality Rating: 4 Stars   [View score details]
Rating Points Total: 110
Crash Modification Factor (CMF)
Value: 0.37
Adjusted Standard Error:
Unadjusted Standard Error: 0.052
Crash Reduction Factor (CRF)
Value: 63   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 5.2
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: Urban and suburban
Traffic Volume:
Average Traffic Volume:
Time of Day: All
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: 2003 to 2008
Municipality: Berkeley
State: CA
Country: USa
Type of Methodology Used: Non-regression cross-section
Sample Size (crashes): 2114 crashes
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Jul-15-2011