CMF / CRF Details
CMF ID: 10897
Convert intersection to displaced left turn intersection
Description:
Prior Condition: Conventional Signalized Intersection
Category: Intersection geometry
Study: Evaluation of displaced left-turn intersections, Abdelrahman et al., 2020
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 50 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.967 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.22 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 3.3 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 22 |
| Applicability | |
|---|---|
| Crash Type: | Other |
| Crash Severity: | All |
| Roadway Types: | Not specified |
| 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: | |
| 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: | 4-leg |
| Traffic Control: | Signalized |
| Major Road Traffic Volume: | Minimum of 20288 to Maximum of 70000 Annual Average Daily Traffic (AADT) |
| Minor Road Traffic Volume: | Minimum of 6075 to Maximum of 43000 Annual Average Daily Traffic (AADT) |
| Average Major Road Volume : | 49827 Annual Average Daily Traffic (AADT) |
| Average Minor Road Volume : | 23883 Annual Average Daily Traffic (AADT) |
| Development Details | |
|---|---|
| Date Range of Data Used: | |
| Municipality: | |
| State: | CO,LA,OH,UT |
| Country: | |
| Type of Methodology Used: | |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jul 01, 2021 |
| Comments: | This CMF is for Side Swipe Same Direction crashes. |
