CMF / CRF Details
CMF ID: 4584
Convert right shoulder width from 8-ft to 6-ft
Description: Convert right shoulder width from 8-ft to 6-ft
Prior Condition: 8 ft wide shoulder
Category: Shoulder treatments
Study: Accident Modification Factors for Traffic Engineering and ITS Improvements, Harkey et al., 2008
| Star Quality Rating: | Cannot Be Rated (HSM) |
| Rating Points Total: | |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.04 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -4 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | Not specified |
| Roadway Types: | Principal Arterial Other |
| Street Type: | |
| Minimum Number of Lanes: | 3 |
| Maximum Number of Lanes: | |
| Number of Lanes Direction: | Both Directions |
| Number of Lanes Comment: | Multi Lane |
| Crash Weather: | Not specified |
| Road Division Type: | Divided by Median |
| Minimum Speed Limit: | |
| Maximum Speed Limit: | |
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| Speed Limit Comment: | |
| Area Type: | Rural |
| Traffic Volume: | |
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| If countermeasure is intersection-based | |
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| 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: | |
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| Type of Methodology Used: | Expert panel |
| Other Details | |
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| Included in Highway Safety Manual? | |
| Date Added to Clearinghouse: | Dec 01, 2009 |
| Comments: | HSM 1st Ed, Table 13-8 |
