CMF / CRF Details
Presence of right turning lane on arterial with signal coordination
Countermeasure ID: 3073
Description:
Prior Condition: No Prior Condition(s)
Category: Intersection geometry
Study: Safety Effect of Arterial Signal Coordination, Wei and Tarko, 2011
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 50 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.32 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.11 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 68.3 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 10.9 |
| Applicability | |
|---|---|
| Crash Type: | Angle |
| Crash Severity: | All |
| Roadway Types: | All |
| Street Type: | |
| Minimum Number of Lanes: | 1 |
| Maximum Number of Lanes: | 3 |
| Number of Lanes Direction: | |
| Number of Lanes Comment: | |
| Crash Weather: | Not specified |
| Road Division Type: | |
| Minimum Speed Limit: | 30 |
| Maximum Speed Limit: | 50 |
| Speed Unit: | mph |
| 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: | |
| Traffic Control: | Signalized |
| Major Road Traffic Volume: | Maximum of 1840 Vehicles Per Hour |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 2003 to 2006 |
| Municipality: | |
| State: | IN |
| Country: | USA |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (crashes): | 54 crashes |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jul 15, 2011 |
| Comments: | The volume is entered as vehicles per hour per lane |
