CMF / CRF Details
CMF ID: 10043
Install snow fencing
Description:
Prior Condition: No Snow Fencing Along Roadside
Category: Roadside
Study: Quantifying the Safety Effectiveness of Snow Fence Implementations Based on Crash Severity and Snow Fence Type Utilizing Contemporary Statistical Methods, Larson et al., 2019
Star Quality Rating: | Cannot Be Rated (Insufficient Information) |
Rating Points Total: |
Crash Modification Factor (CMF) | |
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Value: | 0.36 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.037 |
Crash Reduction Factor (CRF) | |
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Value: | 64 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 3.7 |
Applicability | |
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Crash Type: | Other |
Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
Roadway Types: | Principal Arterial Interstate |
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: | 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: | All |
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: | 2003 to 2017 |
Municipality: | |
State: | WY |
Country: | United States |
Type of Methodology Used: | Other before/after |
Sample Size (crashes): | 163 crashes before, 115 crashes after |
Sample Size (miles): | 55 miles before, 55 miles after |