CMF / CRF Details
CMF ID: 2515
Replace TWLTL with raised median
Description:
Prior Condition: Two way left turn lane (TWLTL)
Category: Access management
Study: Modeling and Evaluating the Safety Impacts of Access Management (AM) Features in the Las Vegas Valley, Mauga and Kaseko, 2010
Star Quality Rating: | [View score details] |
Rating Points Total: | 115 |
Crash Modification Factor (CMF) | |
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Value: | 0.65 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.0728 |
Crash Reduction Factor (CRF) | |
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Value: | 36 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 7.28 |
Applicability | |
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Crash Type: | Angle |
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: | 30 |
Maximum Speed Limit: | 45 |
Speed Unit: | mph |
Speed Limit Comment: | |
Area Type: | Urban |
Traffic Volume: | Minimum of 4883 to Maximum of 96080 Annual Average Daily Traffic (AADT) |
Average Traffic Volume: | |
Time of Day: | Not specified |
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: | 2002 to 2006 |
Municipality: | |
State: | NV |
Country: | |
Type of Methodology Used: | Regression cross-section |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Aug 11, 2010 |
Comments: |