CMF / CRF Details
CMF ID: 3252
Installation of bicycle lanes at signalized intersections
Description:
Installation of bicycle lanes at signalized intersections
Prior Condition: No bicycle lanes, cyclists shared the roadway with motor vehicles
Category: Bicyclists
Crash Modification Factor (CMF) |
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Value: | 0.42 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | |
Crash Reduction Factor (CRF) |
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Value: | 58 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | |
Applicability |
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Crash Type: | Vehicle/bicycle |
Crash Severity: | All |
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: | All |
Minimum Speed Limit: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | Urban and suburban |
Traffic Volume: | |
Average Traffic Volume: | |
Time of Day: | All |
If countermeasure is intersection-based |
Intersection Type: | Roadway/roadway (not interchange related) |
Intersection Geometry: | 4-leg |
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: | |
Municipality: | Christchurch |
State: | notusa |
Country: | New Zealand |
Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |
Sample Size (crashes): | 5 crashes before, 2 crashes after |
Sample Size (sites): | 104 sites before, 104 sites after |
Other Details |
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Included in Highway Safety Manual? | No |
Date Added to Clearinghouse: | Jul 15, 2011 |
Comments: | Crash Type: Cyclist through, right turning vehicle in same direction (note: study was performed in New Zealand and turning directions have been reversed for right-side driving countries when entered). Not much detail is presented regarding the before-aft |