CMF / CRF Details
Commercial vs. residential land use
Countermeasure ID: 2221
Description:
Prior Condition: No Prior Condition(s)
Category: Roadway
Study: Correlating Access Management to Crash Rate, Severity, and Collision Type, Schultz et al., 2008
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 125 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 3.42 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 1.321 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -242.12 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 132.06 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | All |
| Roadway Types: | Principal Arterial Other |
| 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: | Urban |
| Traffic Volume: | Minimum of 1390 to Maximum of 51200 Annual Average Daily Traffic (AADT) |
| 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 2004 |
| Municipality: | |
| State: | UT |
| Country: | |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (site-years): | 525 site-years |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Dec 01, 2009 |
| Comments: | |
