CMF / CRF Details
CMF ID: 11643
Convert a conventional signalized intersection to a continuous flow intersection (CFI)
Description:
Prior Condition: Conventional signalized intersection
Category: Intersection geometry
Study: Development of a Crash Modification Factor for Conversion of a Conventional Signalized Intersection to a CFI, Cunningham et al., 2022
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 95 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.144 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.13 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -14.4 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 13 |
| Applicability | |
|---|---|
| Crash Type: | Rear end |
| Crash Severity: | All |
| Roadway Types: | All |
| Street Type: | Two-Way |
| Minimum Number of Lanes: | |
| Maximum Number of Lanes: | |
| Number of Lanes Direction: | |
| Number of Lanes Comment: | |
| Crash Weather: | All |
| Road Division Type: | |
| Minimum Speed Limit: | |
| Maximum Speed Limit: | |
| Speed Unit: | |
| Speed Limit Comment: | |
| Area Type: | All |
| 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, 4-leg |
| Traffic Control: | Signalized |
| Major Road Traffic Volume: | Minimum of 21740 to Maximum of 64000 Annual Average Daily Traffic (AADT) |
| Minor Road Traffic Volume: | Minimum of 7441 to Maximum of 39220 Annual Average Daily Traffic (AADT) |
| Average Major Road Volume : | 41010 Annual Average Daily Traffic (AADT) |
| Average Minor Road Volume : | 22368 Annual Average Daily Traffic (AADT) |
| Development Details | |
|---|---|
| Date Range of Data Used: | 1995 to 2020 |
| Municipality: | |
| State: | CO, GA, MS, OH, TX, UT |
| Country: | USA |
| Type of Methodology Used: | |
