CMF / CRF Details
Install a pedestrian hybrid beacon (PHB or HAWK)
Countermeasure ID: 10602
Description:
Prior Condition: No Prior Condition(s)
Category: Pedestrians
Study: Evaluation of Pedestrian Hybrid Beacons on Arizona Highways, Fitzpatrick et al., 2019
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 150 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.748 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.062 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 25.2 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 6.2 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
| Roadway Types: | All |
| Street Type: | |
| Minimum Number of Lanes: | |
| Maximum Number of Lanes: | |
| 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: | |
| Average Traffic Volume: | |
| Time of Day: | All |
| If countermeasure is intersection-based | |
| Intersection Type: | Roadway/roadway (not interchange related) |
| Intersection Geometry: | 3-leg,4-leg,Not specified |
| Traffic Control: | Not specified |
| Major Road Traffic Volume: | Minimum of 5400 to Maximum of 47627 Annual Average Daily Traffic (AADT) |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | 23959 Annual Average Daily Traffic (AADT) |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 2007 to 2017 |
| Municipality: | |
| State: | AZ |
| Country: | |
| Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
| Sample Size (crashes): | 408 crashes before, 230 crashes after |
| Sample Size (sites): | 52 sites before, 52 sites after |
| Sample Size (site-years): | 342.33 site-years before, 225.33 site-years after |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Dec 17, 2020 |
| Comments: | The reference group consisted of 101 unsignalized and 56 signalized intersections. |
