CMF / CRF Details
CMF ID: 189
Effects of snow fences and higher state of preparedness for the whole winter season
Description:
Prior Condition: No Prior Condition(s)
Category: Roadway
Study: Handbook of Road Safety Measures, Elvik, R. and Vaa, T., 2004
Star Quality Rating: | [View score details] |
Rating Points Total: | 75 |
Crash Modification Factor (CMF) | |
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Value: | 0.89 |
Adjusted Standard Error: | 0.26 |
Unadjusted Standard Error: |
Crash Reduction Factor (CRF) | |
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Value: | 11 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | 26 |
Unadjusted Standard Error: |
Applicability | |
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Crash Type: | All |
Crash Severity: | All |
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: | All |
Traffic Volume: | Minimum of All to Maximum of All |
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 | |
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Date Range of Data Used: | |
Municipality: | |
State: | |
Country: | |
Type of Methodology Used: | Meta-analysis |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Dec 01, 2009 |
Comments: |