CMF / CRF Details
CMF ID: 5427
Provide intersection illumination
Description:
Prior Condition: No lighting
Category: Highway lighting
Study: To Illuminate or not to illuminate: Roadway lighting as it affects traffic safety at intersections, Bullough et al., 2012
Star Quality Rating: | [View score details] |
Rating Points Total: | 85 |
Crash Modification Factor (CMF) | |
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Value: | 0.98 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.255 |
Crash Reduction Factor (CRF) | |
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Value: | 2 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 25.5 |
Applicability | |
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Crash Type: | Nighttime |
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: | Rural |
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 40 to Maximum of 77430 Average Daily Traffic (ADT) |
Minor Road Traffic Volume: | Minimum of 1 to Maximum of 77430 Average Daily Traffic (ADT) |
Average Major Road Volume : | |
Average Minor Road Volume : |
Development Details | |
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Date Range of Data Used: | 1999 to 2002 |
Municipality: | |
State: | MN |
Country: | |
Type of Methodology Used: | Regression cross-section |
Sample Size (crashes): | 352 crashes |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jan 09, 2014 |
Comments: |