CMF / CRF Details
CMF ID: 2621
Convert from yield signal control to signalized control
Description:
Prior Condition: yield control
Category: Intersection traffic control
Study: Safety Effects of Intersection Signalization: a Before-After Study, Jensen, 2010
Star Quality Rating: | [View score details] |
Rating Points Total: | 45 |
Crash Modification Factor (CMF) | |
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Value: | 0.92 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.08 |
Crash Reduction Factor (CRF) | |
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Value: | 8 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 7.7 |
Applicability | |
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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: | Urban |
Traffic Volume: | |
Average Traffic Volume: | |
Time of Day: | All |
If countermeasure is intersection-based | |
Intersection Type: | Roadway/roadway (not interchange related) |
Intersection Geometry: | 3-leg,4-leg,More than 4 legs |
Traffic Control: | Signalized |
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: | 1976 to 2004 |
Municipality: | Copenhagen |
State: | notusa |
Country: | Denmark |
Type of Methodology Used: | Simple before/after |
Sample Size (crashes): | 307 crashes before, 296 crashes after |
Other Details | |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Aug 11, 2010 |
Comments: | This CMF is for end-crossroad crashes 360-500 m away from intersection |