CMF / CRF Details
CMF ID: 10224
Change paved median to raised traffic separator
Description:
Prior Condition: Paved median
Category: Roadside
Study: Estimation of bicycle crash modification factors (CMFs) on urban facilities using zero inflated negative binomial models, Raihan et al., 2019
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 105 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.27 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.15 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -27 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 15 |
| Applicability | |
|---|---|
| Crash Type: | Vehicle/bicycle |
| Crash Severity: | All |
| Roadway Types: | Not specified |
| Street Type: | |
| Minimum Number of Lanes: | 4 |
| Maximum Number of Lanes: | 4 |
| Number of Lanes Direction: | |
| Number of Lanes Comment: | |
| Crash Weather: | Not specified |
| Road Division Type: | Divided by Median |
| Minimum Speed Limit: | 35 |
| Maximum Speed Limit: | 60 |
| Speed Unit: | mph |
| Speed Limit Comment: | |
| Area Type: | Urban |
| Traffic Volume: | Minimum of 2300 to Maximum of 120000 Annual Average Daily Traffic (AADT) |
| Average Traffic Volume: | 24826 Annual Average Daily Traffic (AADT) |
| 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: | 2011 to 2014 |
| Municipality: | |
| State: | FL |
| Country: | USA |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (crashes): | 1174 crashes |
| Sample Size (miles): | 1573 miles |
| Sample Size (mile-years): | 6292 mile-years |
