CMF / CRF Details

CMF ID: 4042

Installation of left-turn lane or left-turn section on the main road where cyclists have priority at the intersection

Description: Installation of left-turn lane or left-turn section on the main road where cyclists have priority at the intersection.

Prior Condition: No left-turn lane or left-turn section on the main road where cyclists have priority at the intersection.

Category: Bicyclists

Study: Road Factors and Bicycle-Motor Vehicle Crashes at Unsignalized Priority Intersections, Schepers et al., 2011

 
Star Quality Rating: 2 Stars   [View score details]
Rating Points Total: 60
Crash Modification Factor (CMF)
Value: 1.12
Adjusted Standard Error:
Unadjusted Standard Error: 0.207
Crash Reduction Factor (CRF)
Value: -12   (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 20.7
Applicability
Crash Type: Vehicle/bicycle
Crash Severity: All
Roadway Types: All
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: All
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 : 2200 Annual Average Daily Traffic (AADT)
Development Details
Date Range of Data Used: 2005 to 2008
Municipality:
State:
Country: Netherlands
Type of Methodology Used: Regression cross-section
Sample Size (site-years): 596 site-years
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Jun-04-2012
Comments: