CMF / CRF Details

CMF ID: 4654

Provide passing lane or climbing lane

Description: Provide passing lane or climbing lane

Prior Condition: Two-lane rural road

Category: Roadway

Study: Prediction of the Expected Safety Performance of Rural Two-Lane Highways, Harwood et al., 2000

 
Star Quality Rating: Cannot Be Rated (HSM)
Crash Modification Factor (CMF)
Value: 0.75
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value: 25   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type: All
Crash Severity: All
Roadway Types: Minor Arterial
Number of Lanes: 2
Road Division Type:
Speed Limit:
Area Type: Rural
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:
Country:
Type of Methodology Used: Expert panel
Other Details
Included in Highway Safety Manual?
Date Added to Clearinghouse: Dec-01-2009
Comments: HSM 1st Ed, Table 16-7