CMF / CRF Details
CMF ID: 2374
Increase pavement marking retroreflectivity
Description: Increase pavement marking retroreflectivity from X to Y mcd/m2/lx
Prior Condition: Increase pavement marking retroreflectivity from X to Y where X is less than 200 mcd/m2/lx.
Category: Delineation
Study: An Analysis of the Safety Effectiveness of Pavement Marking Retroreflectivity, Smadi et al., 2008
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 70 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: |  |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) | |
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| Value: |  |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability | |
|---|---|
| Crash Type: | Cross median,Fixed object,Frontal and opposing direction sideswipe,Head on,Nighttime,Run off road,Sideswipe,Single vehicle |
| Crash Severity: | All |
| 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: | Rural |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | Night |
| 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: | 2004 to 2006 |
| Municipality: | |
| State: | IA |
| Country: | |
| Type of Methodology Used: | Regression cross-section |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jan 01, 1970 |
| Comments: | This CMF is for low retroreflectivity (less than 200 mcd/m2/lx) |
