CMF / CRF Details
CMF ID: 7429
Installation of fixed combined speed and red light cameras
Description: Installation of fixed combined speed and red light cameras
Prior Condition: Intersections without speed and red light cameras
Category: Speed management
Study: To brake or to accelerate? Safety effects of combined speed and red light cameras, De Pauw et al., 2014
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 65 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.82 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.05 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 18 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 5 |
| Applicability | |
|---|---|
| Crash Type: | Angle,Left turn |
| Crash Severity: | All |
| Roadway Types: | Not specified |
| Street Type: | |
| Minimum Number of Lanes: | 1 |
| Maximum Number of Lanes: | 2 |
| Number of Lanes Direction: | |
| Number of Lanes Comment: | |
| Crash Weather: | Not specified |
| Road Division Type: | |
| Minimum Speed Limit: | 50 |
| Maximum Speed Limit: | 90 |
| Speed Unit: | km/h |
| Speed Limit Comment: | 50, 70, and 90 km/h |
| Area Type: | All |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | Not specified |
| If countermeasure is intersection-based | |
| Intersection Type: | Not specified |
| Intersection Geometry: | Not specified |
| Traffic Control: | Signalized |
| Major Road Traffic Volume: | |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 2000 to 2008 |
| Municipality: | Flanders |
| State: | notusa |
| Country: | Belgium |
| Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
| Sample Size (sites): | 152 sites before, 152 sites after |
