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) |
|---|
| Value: | 0.42 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Crash Reduction Factor (CRF) |
|---|
| Value: | 58 (This value indicates a decrease in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | |
| Applicability |
|---|
| 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 |
|---|
| 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 |
|---|
| 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 |
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