CMF / CRF Details
CMF ID: 2115
Convert continuous access HOV lanes to limited-access (HOV and left lane crashes)
Description:
Prior Condition: freeway with HOV lane
Category: Roadway
Study: Safety Performance of High-Occupancy-Vehicle Facilities: Evaluation of HOV Lane Configurations in California, Jang et al., 2009
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 30 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.2 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 1.957 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -19.6 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 195.7 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury) |
| Roadway Types: | Principal Arterial Interstate |
| 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: | |
| 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: | 1999 to 2003 |
| Municipality: | |
| State: | CA |
| Country: | |
| Type of Methodology Used: | Non-regression cross-section |
