CMF / CRF Details

CMF ID: 52

Install wire guardrails between lanes of opposing traffic


Prior Condition: No Prior Condition(s)

Category: Roadside

Study: Handbook of Road Safety Measures, Elvik, R. and Vaa, T., 2004

Star Quality Rating: 1 Star   [View score details]
Rating Points Total: 30
Crash Modification Factor (CMF)
Value: 0
Adjusted Standard Error: 2.54
Unadjusted Standard Error: 0.51
Crash Reduction Factor (CRF)
Value: 100   (This value indicates a decrease in crashes)
Adjusted Standard Error: 254
Unadjusted Standard Error: 51
Crash Type: All
Crash Severity: K (fatal)
Roadway Types: Principal Arterial Other
Number of Lanes: 3
Road Division Type:
Speed Limit:
Area Type: Not specified
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:
Type of Methodology Used: 4
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Dec-01-2009