CMF / CRF Details
CMF ID: 11136
Road diet (Convert 4-lane undivided road to 2-lanes plus turning lane)
Description:
Prior Condition: signalized intersection
Category: Roadway
Study: Development of Road Diet Segment and Intersection Crash Modification Factors, Linda Lim and Michael D. Fontaine, 2022
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 105 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.41 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.12 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 59 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 12 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
| Roadway Types: | Minor Arterial |
| Street Type: | Two-Way |
| Minimum Number of Lanes: | |
| Maximum Number of Lanes: | |
| Number of Lanes Direction: | Both Directions |
| 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: | Not specified |
| 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 2600 to Maximum of 17000 Annual Average Daily Traffic (AADT) |
| Minor Road Traffic Volume: | Minimum of 325 to Maximum of 13000 Annual Average Daily Traffic (AADT) |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | |
| Municipality: | |
| State: | VA |
| Country: | |
| Type of Methodology Used: | |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Aug 25, 2022 |
| Comments: | This is the CMF of KABC crashes for signalized intersections. |
