CMF / CRF Details

CMF ID: 4599

Convert paved shoulder to turf shoulder (maintain 4 ft width)

Description: Convert paved shoulder to turf shoulder (maintain 4 ft width)

Prior Condition: Paved shoulder (HSM notes that to determine the CMF for changing the shoulder type, divide the "new" condition CMF by the "existing" condition CMF.

Category: Shoulder treatments

Study: Highway Safety Manual, 1st Edition, Various, 2010

 
Star Quality Rating: Cannot Be Rated (HSM)
Crash Modification Factor (CMF)
Value: 1.05
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value: -5   (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type: Head on,Run off road,Sideswipe,Single vehicle
Crash Severity: Not specified
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: No state(s) chosen.
Country:
Type of Methodology Used:
Other Details
Included in Highway Safety Manual?
Date Added to Clearinghouse:
Comments: HSM 1st Ed, Table 13-9