CMF / CRF Details
CMF ID: 5591
Install a traffic signal
Description:
Prior Condition: Intersections were unsignalized
Category: Intersection traffic control
Study: Evaluating the Safety Effects of Signal Improvements, Schultz et al., 2014
Star Quality Rating: | [View score details] |
Rating Points Total: | 20 |
Crash Modification Factor (CMF) | |
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Value: | 0.94 |
Adjusted Standard Error: | |
Unadjusted Standard Error: |
Crash Reduction Factor (CRF) | |
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Value: | 6 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: |
Applicability | |
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Crash Type: | All |
Crash Severity: | |
Roadway Types: | All |
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: | 30 |
Maximum Speed Limit: | 45 |
Speed Unit: | mph |
Speed Limit Comment: | |
Area Type: | Not specified |
Traffic Volume: | |
Average Traffic Volume: | |
Time of Day: | All |
If countermeasure is intersection-based | |
Intersection Type: | Not specified |
Intersection Geometry: | No values chosen. |
Traffic Control: | Not specified |
Major Road Traffic Volume: | |
Minor Road Traffic Volume: | |
Average Major Road Volume : | |
Average Minor Road Volume : |
Development Details | |
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Date Range of Data Used: | 2002 to 2011 |
Municipality: | |
State: | UT |
Country: | |
Type of Methodology Used: | Other before/after |