CMF / CRF Details
CMF ID: 10664
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: | 130 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.665 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.083 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 33.5 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 8.3 |
| Applicability | |
|---|---|
| Crash Type: | All |
| 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 | |
|---|---|
| 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 | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Feb 25, 2021 |
| Comments: | |
