CMF / CRF Details

CMF ID: 4584

Convert right shoulder width from 8-ft to 6-ft

Description: Convert right shoulder width from 8-ft to 6-ft

Prior Condition:  8 ft wide shoulder

Category: Shoulder treatments

Study: Accident Modification Factors for Traffic Engineering and ITS Improvements, Harkey et al., 2008

 
Star Quality Rating:Cannot Be Rated (HSM)
Rating Points Total:
Crash Modification Factor (CMF)
Value:1.04
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:-4  (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type:All
Crash Severity:Not specified
Roadway Types:Principal Arterial Other
Street Type:
Minimum Number of Lanes:3
Maximum Number of Lanes:
Number of Lanes Direction:Both Directions
Number of Lanes Comment:Multi Lane
Crash Weather:Not specified
Road Division Type:Divided by Median
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
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 13-8