CMF / CRF Details
CMF ID: 10684
Install restricted crossing U-turn intersections
Description:
Prior Condition: No Prior Condition(s)
Category: Intersection geometry
Study: Development of Safety Performance Functions for Restricted Crossing U-Turn Intersections, Ulak et al., 2020
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 95 |
| Crash Modification Factor (CMF) | |
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| Value: |  |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) | |
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| Value: |  |
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| Unadjusted Standard Error: | |
| 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: | Divided by Median |
| 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: | Signalized |
| Major Road Traffic Volume: | Minimum of 9700 to Maximum of 100467 Annual Average Daily Traffic (AADT) |
| Minor Road Traffic Volume: | Minimum of 1000 to Maximum of 18218 Annual Average Daily Traffic (AADT) |
| Average Major Road Volume : | 38138 Annual Average Daily Traffic (AADT) |
| Average Minor Road Volume : | 6828 Annual Average Daily Traffic (AADT) |
| Development Details | |
|---|---|
| Date Range of Data Used: | |
| Municipality: | |
| State: | AL,MD,MI,NC,OH,TX |
| Country: | |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (crashes): | 2805 crashes |
| Sample Size (sites): | 42 sites |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Feb 25, 2021 |
| Comments: | This CMFunction is for Number of Driveways. |
