CMF / CRF Details

CMF ID: 2962

Install right-turn lane on minor road of a signalized T intersection (motorcycle crashes)

Description: Install exclusive right-turn lane on minor road of a signalized T intersection (effect on motorcycle crashes)

Prior Condition:  No Prior Condition(s)

Category: Intersection geometry

Study: Applying Bayesian Hierarchical Models to Examine Motorcycle Crashes at Signalized Intersections, Haque et al., 2010

 
Star Quality Rating:4 Stars  [View score details]
Rating Points Total:120
Crash Modification Factor (CMF)
Value:1.6
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:-60  (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type:All
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
Traffic Volume:
Average Traffic Volume:
Time of Day:All
If countermeasure is intersection-based
Intersection Type:Not specified
Intersection Geometry:3-leg
Traffic Control:Signalized
Major Road Traffic Volume:Minimum of 4800 to Maximum of 30270 Annual Average Daily Traffic (AADT)
Minor Road Traffic Volume:Minimum of 2550 to Maximum of 25010 Annual Average Daily Traffic (AADT)
Average Major Road Volume :15489 Annual Average Daily Traffic (AADT)
Average Minor Road Volume :10447 Annual Average Daily Traffic (AADT)
Development Details
Date Range of Data Used:2003 to 2006
Municipality:
State:notusa
Country:Singapore
Type of Methodology Used:Regression cross-section
Sample Size (crashes):400 crashes
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Mar 21, 2011
Comments:Only motorcycle related crashes