CMF / CRF Details
CMF ID: 9024
Install rectangular rapid flashing beacon (RRFB)
Description: Install rectangular rapid flashing beacon (RRFB)
Prior Condition: No RRFB
Category: Pedestrians
Study: Development of Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments, Zegeer et al., 2017
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 85 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.526 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.377 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 47.4 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 37.7 |
| Applicability | |
|---|---|
| Crash Type: | Vehicle/pedestrian |
| Crash Severity: | All |
| Roadway Types: | Minor Arterial |
| Street Type: | |
| Minimum Number of Lanes: | 2 |
| Maximum Number of Lanes: | 8 |
| 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: | Urban and suburban |
| Traffic Volume: | Minimum of 533 to Maximum of 49402 Annual Average Daily Traffic (AADT) |
| Average Traffic Volume: | 15958 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: | 2004 to 2013 |
| Municipality: | |
| State: | AZ,FL,IL,MA,NY,NC,OR,VA,WI |
| Country: | USA |
| Type of Methodology Used: | Regression cross-section |
| Sample Size (site-years): | 1928 site-years |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Nov 17, 2017 |
| Comments: | |
