CMF / CRF Details
CMF ID: 2838
Widen left shoulder by 1 foot
Description: Widen left shoulder by 1 foot
Prior Condition: No Prior Condition(s)
Category: Shoulder treatments
Study: An Assessment of Traffic Safety in Urban Deer Herd Management Zones in Iowa, Gkritza et al., 2010
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 70 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.925 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.04 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 8 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 3.6 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
| Roadway Types: | Not Specified |
| 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: | 2002 to 2007 |
| Municipality: | Dubuque, Cedar Rapids, Iowa City |
| State: | IA |
| Country: | USA |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (crashes): | 117 crashes |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Mar 21, 2011 |
| Comments: | For deer-related injury crash in urban deer management zones. |
