CMF / CRF Details
CMF ID: 2834
Install Cargill SafeLane anti-icing pavement overlay system on bridges
Description: The Cargill SafeLane overlay system uses aggregate that absorbs and stores liquid deicing chemicals that is released to help prevent frost and ice formation on roadway surfaces.
Prior Condition: No Prior Condition(s)
Category: Roadway
Study: Evaluation of the SafeLane Overlay System for Crash Reduction on Bridge Deck Surfaces, Evans, 2010
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 30 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.21 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 73 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 20.7 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
| Roadway Types: | Not Specified |
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| Minimum Number of Lanes: | |
| Maximum Number of Lanes: | |
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| Number of Lanes Comment: | |
| Crash Weather: | Not specified |
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| Maximum Speed Limit: | |
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| Area Type: | |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | All |
| If countermeasure is intersection-based | |
| Intersection Type: | |
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| Traffic Control: | |
| Major Road Traffic Volume: | |
| Minor Road Traffic Volume: | |
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| Development Details | |
|---|---|
| Date Range of Data Used: | 2004 to 2009 |
| Municipality: | |
| State: | MN |
| Country: | USA |
| Type of Methodology Used: | Simple before/after |
| Sample Size (site-years): | 7 site-years before, 5.25 site-years after |
