CMF / CRF Details

CMF ID: 5159

Provide highway lighting

Description:

Prior Condition: Absence of lighting

Category: Highway lighting

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: 0.71
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value: 29   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type: Nighttime
Crash Severity: K (fatal),A (serious injury),B (minor injury),C (possible injury)
Roadway Types: All
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:
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: Meta-analysis
Other Details
Included in Highway Safety Manual? Yes
Date Added to Clearinghouse: Dec-01-2009
Comments: