CMF / CRF Details
CMF ID: 10775
Install centerline rumble strips
Description:
Prior Condition: No Prior Condition(s)
Category: Roadway
Study: Impact of Adverse Wintry Conditions on the Effectiveness of Centerline Rumble Strips A Case Study of Wyoming and Colorado using Before After Empirical Bayes, Ahmed & Ahmed, 2021
Star Quality Rating: | [View score details] |
Rating Points Total: | 75 |
Crash Modification Factor (CMF) | |
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Value: | 0.3 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.12 |
Crash Reduction Factor (CRF) | |
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Value: | 70 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 12 |
Applicability | |
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Crash Type: | Head on,Sideswipe |
Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
Roadway Types: | Principal Arterial Other |
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: | Rural |
Traffic Volume: | Minimum of 3238 to Maximum of 5855 Annual Average Daily Traffic (AADT) |
Average Traffic Volume: | 3528 Annual Average Daily Traffic (AADT) |
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: | 2005 to 2019 |
Municipality: | |
State: | WY |
Country: | |
Type of Methodology Used: |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jul 01, 2021 |
Comments: | This CMF is for Head-On and Opposite Direction Sideswipe crashes. |