CMF / CRF Details
CMF ID: 10669
Convert continuous green T-intersections to conventional T-intersections
Description:
Prior Condition: Continuous Green T-Intersection
Category: Intersection traffic control
Study: Safety Implications of Converting Continuous Green T-Intersections Back to Conventional T-Intersections, Lee et al., 2020
Star Quality Rating: | [View score details] |
Rating Points Total: | 90 |
Crash Modification Factor (CMF) | |
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Value: | 0.959 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.216 |
Crash Reduction Factor (CRF) | |
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Value: | 4.1 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 21.6 |
Applicability | |
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Crash Type: | Single vehicle |
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: | All |
Minimum Speed Limit: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | Urban and suburban |
Traffic Volume: | |
Average Traffic Volume: | |
Time of Day: | All |
If countermeasure is intersection-based | |
Intersection Type: | Roadway/roadway (not interchange related) |
Intersection Geometry: | 3-leg |
Traffic Control: | Signalized |
Major Road Traffic Volume: | |
Minor Road Traffic Volume: | |
Average Major Road Volume : | 22163 Annual Average Daily Traffic (AADT) |
Average Minor Road Volume : | 5747 Annual Average Daily Traffic (AADT) |
Development Details | |
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Date Range of Data Used: | 2012 to 2017 |
Municipality: | |
State: | FL |
Country: | |
Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
Sample Size (sites): | 6 sites before, 6 sites after |
Sample Size (site-years): | 12 site-years before, 12 site-years after |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Feb 25, 2021 |
Comments: |