CMF / CRF Details

CMF ID: 5213

Modify paved shoulder width on rural frontage roads

Description: The average paved shoulder width represents the sum of the left and right paved shoulder widths divided by two.

Prior Condition:  No Prior Condition(s)

Category: Shoulder treatments

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

 
Star Quality Rating:Cannot Be Rated (HSM)
Rating Points Total:
Crash Modification Factor (CMF)
Value:Equation
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type:All
Crash Severity:All
Roadway Types:Minor Collector
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:Rural
Traffic Volume:Minimum of 100 to Maximum of 6200 Annual Average Daily Traffic (AADT)
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:Not specified
Other Details
Included in Highway Safety Manual?Yes
Date Added to Clearinghouse:Jan 01, 1970
Comments:Both one-way and two-way frontage roads were considered in the development of the CMF. Development of this CMF was limited to shoulder widths ranging from 0 to 9 ft.