CMF / CRF Details
Installation of fixed speed cameras
Countermeasure ID: 6139
Description: Installation of fixed speed cameras on arterials limited access freeways
Prior Condition: No Speed Cameras Present
Category: Speed management
Study: An evaluation of the traffic safety effect of fixed speed cameras, De Pauw et al., 2014
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 20 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.02 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.077 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -2 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 7.7 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
| 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: | 30 |
| Maximum Speed Limit: | 55 |
| Speed Unit: | km/h |
| Speed Limit Comment: | 50 - 90 km/h converted to mph |
| Area Type: | All |
| Traffic Volume: | |
| 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 : | |
| 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 comparison group |
| Sample Size (sites): | 65 sites before, 65 sites after |
| Sample Size (site-years): | 252 site-years before, 166 site-years after |
