CMF / CRF Details
CMF ID: 11324
Improve pavement friction at horizontal curves (Light Weight Aggregate)
Description:
Prior Condition: Roadway without friction improvement surface treatments
Category: Roadway
Study: Crash Reduction Analysis of Friction Improvement Surface Treatments in Georgia, Liu et al., 2023
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 10 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 4 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -300 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability | |
|---|---|
| Crash Type: | Other |
| Crash Severity: | No crash severity values chosen. |
| Roadway Types: | All |
| Street Type: | Not Specified |
| Minimum Number of Lanes: | |
| Maximum Number of Lanes: | |
| Number of Lanes Direction: | |
| Number of Lanes Comment: | |
| Crash Weather: | Wet road |
| Road Division Type: | |
| Minimum Speed Limit: | |
| Maximum Speed Limit: | |
| Speed Unit: | |
| Speed Limit Comment: | |
| Area Type: | Not specified |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | All |
| If countermeasure is intersection-based | |
| Intersection Type: | |
| Intersection Geometry: | |
| Traffic Control: | |
| Major Road Traffic Volume: | |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 2012 to 2020 |
| Municipality: | |
| State: | GA |
| Country: | USA |
| Type of Methodology Used: | |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jan 19, 2024 |
| Comments: | This CMF is for crashes related to Wet Surface Conditions. |
