CMF / CRF Details
CMF ID: 11215
Change Corner Right Turn Radius
Description:
Prior Condition: Corner right turn radius of 10ft.
Category: Intersection geometry
Study: Crash Modification Factor for Corner Radius, Right-Turn Speed, and Prediction of Pedestrian Crashes at Signalized Intersections, Fitzpatrick et al., 2022
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 105 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.18 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.077 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -18 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 7.7 |
| Applicability | |
|---|---|
| Crash Type: | Vehicle/pedestrian |
| 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: | 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,4-leg |
| Traffic Control: | Not specified |
| Major Road Traffic Volume: | |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 2011 to 2017 |
| Municipality: | Richmond, VA and Bellevue, WA |
| State: | VA,WA |
| Country: | USA |
| Type of Methodology Used: | |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Aug 25, 2022 |
| Comments: | This CMF is for Corner Right Turn Radius of 20ft. |
