CMF / CRF Details
CMF ID: 8493
Install red-light cameras
Description: RLR enforcement cameras
Prior Condition: No red-light cameras
Category: Advanced technology and ITS
Study: Effectiveness and Site Selection Criteria for Red Light Camera Systems, Ko et al., 2013
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 145 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.8 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.03 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 20 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 3 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | All |
| Roadway Types: | Not specified |
| 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: | |
| Traffic Volume: | |
| Average Traffic Volume: | |
| Time of Day: | |
| If countermeasure is intersection-based | |
| Intersection Type: | Roadway/roadway (not interchange related) |
| Intersection Geometry: | Not specified |
| Traffic Control: | Signalized |
| Major Road Traffic Volume: | Minimum of 1300 to Maximum of 158000 Average Daily Traffic (ADT) |
| Minor Road Traffic Volume: | Minimum of 950 to Maximum of 52000 Average Daily Traffic (ADT) |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 2007 to 2010 |
| Municipality: | |
| State: | TX |
| Country: | |
| Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
| Sample Size (crashes): | 2781 crashes before, 2597 crashes after |
| Sample Size (sites): | 245 sites before, 245 sites after |
| Sample Size (site-years): | 516 site-years before, 663 site-years after |
