CMF / CRF Details
CMF ID: 8117
Upgrade existing markings to wet-reflective pavement markings
Description:
This strategy involves upgrading existing markings from standard marking materials to wet-reflective markings applied as paint, tape, or thermoplastic material.
Prior Condition: Standard pavement markings
Category: Delineation
Crash Modification Factor (CMF) |
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Value: | 0.944 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.075 |
Crash Reduction Factor (CRF) |
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Value: | 5.6 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 7.5 |
Applicability |
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Crash Type: | All |
Crash Severity: | All |
Roadway Types: | Not specified |
Street Type: | |
Minimum Number of Lanes: | 2 |
Maximum Number of Lanes: | 2 |
Number of Lanes Direction: | |
Number of Lanes Comment: | |
Crash Weather: | Not specified |
Road Division Type: | Undivided |
Minimum Speed Limit: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | |
Traffic Volume: | Minimum of 39 to Maximum of 13779 Annual Average Daily Traffic (AADT) |
Average Traffic Volume: | 2202 Annual Average Daily Traffic (AADT) |
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: | 2003 to 2012 |
Municipality: | |
State: | MN |
Country: | |
Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
Sample Size (crashes): | 176 crashes after |
Sample Size (miles): | 736 miles before, 736 miles after |
Sample Size (miles): | 5540 mile-years before, 1088 mile-years after |
Other Details |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Nov 10, 2016 |
Comments: | CMF does not include intersection-related, animal-related, or snow/slush/ice crashes in the total crashes addressed. |