CMF / CRF Details
CMF ID: 4594
Convert paved shoulder to gravel shoulder (maintain 3 ft width)
Description: Convert paved shoulder to gravel shoulder (maintain 3 ft width)
Prior Condition: Paved shoulder (HSM notes that to determine the CMF for changing the shoulder type, divide the "new" condition CMF by the "existing" condition CMF.
Category: Shoulder treatments
Study: Highway Safety Manual, 1st Edition, Various, 2010
| Star Quality Rating: | Cannot Be Rated (HSM) |
| Rating Points Total: | |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.01 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -1 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability | |
|---|---|
| Crash Type: | Head on,Run off road,Sideswipe,Single vehicle |
| Crash Severity: | Not specified |
| Roadway Types: | Minor Arterial |
| Street Type: | |
| Minimum Number of Lanes: | 2 |
| Maximum Number of Lanes: | 2 |
| 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: | |
| 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 | |
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| Date Range of Data Used: | |
| Municipality: | |
| State: | No state(s) chosen. |
| Country: | |
| Type of Methodology Used: | |
| Other Details | |
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| Included in Highway Safety Manual? | |
| Date Added to Clearinghouse: | Jan 01, 1970 |
| Comments: | HSM 1st Ed, Table 13-9 |
