CMF / CRF Details
CMF ID: 9149
Install light-reflecting devices
Description: Light-reflecting devices (LRDs) are specifically designed mirrors or warning reflectors (‘cat’s eyes’ mounted on posts along the side of roads, scattering the headlight of cars onto the roadside, thereby possibly alerting cervids earlier of approaching vehicles
Prior Condition: No light-reflecting devices
Category: Roadside
Study: Effectiveness of light-reflecting devices: A systematic reanalysis of animal-vehicle collision data, Brieger et al., 2016
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 95 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 0.995 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.003 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | 0.5 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.3 |
| Applicability | |
|---|---|
| Crash Type: | Vehicle/animal |
| Crash Severity: | All |
| Roadway Types: | Not specified |
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| Minimum Number of Lanes: | |
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| Crash Weather: | Not specified |
| Road Division Type: | |
| Minimum Speed Limit: | |
| Maximum Speed Limit: | |
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| Area Type: | Not specified |
| Traffic Volume: | |
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| Time of Day: | Not specified |
| If countermeasure is intersection-based | |
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| Traffic Control: | |
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| Development Details | |
|---|---|
| Date Range of Data Used: | |
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| Country: | North America and Europe |
| Type of Methodology Used: | Meta-analysis |
| Sample Size (sites): | 185 sites |
| Other Details | |
|---|---|
| Included in Highway Safety Manual? | No |
| Date Added to Clearinghouse: | Jan 17, 2018 |
| Comments: | |
