CMF / CRF Details
CMF ID: 6708
Add new paved shoulder
Description:
Add a new paved shoulder where there is currently no paved shoulder
Prior Condition: No paved shoulder
Category: Shoulder treatments
| Crash Modification Factor (CMF) |
|---|
| Value: | 1.02 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) |
|---|
| Value: | -2 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability |
|---|
| Crash Type: | Fixed object,Head on,Run off road,Sideswipe |
| Crash Severity: | A (serious injury),B (minor injury),C (possible injury) |
| Roadway Types: | Not specified |
| 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: | |
| Minimum Speed Limit: | 35 |
| Maximum Speed Limit: | 65 |
| Speed Unit: | mph |
| Speed Limit Comment: | |
| Area Type: | Urban |
| Traffic Volume: | Minimum of 20000 to Maximum of 30000 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 : | NULL Annual Average Daily Traffic (AADT) |
| Average Minor Road Volume : | NULL Annual Average Daily Traffic (AADT) |
| Development Details |
|---|
| Date Range of Data Used: | 2000 to 2006 |
| Municipality: | |
| State: | IL |
| Country: | USA |
| Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
| Sample Size (crashes): | NULL crashes |
| Sample Size (sites): | NULL sites |
| Sample Size (site-years): | NULL site-years |
| Sample Size (miles): | NULL miles |
| Sample Size (mile-years): | NULL mile-years |
| Other Details |
|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jun 22, 2015 |
| Comments: | This CMF applies to urban multilane highways with daily traffic from 20,000 to 30,000 vehicles per day. This CMF applies to shoulder related crashes, which were defined as fixed object, head-on, run-off-road, sideswipe opposite direction, and sideswipe same direction. |
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