CMF / CRF Details
CMF ID: 4665
Install bicycle lanes
Description:
Prior Condition: No bicycle lane at the intersection.
Category: Bicyclists
Study: Evaluating the Safety Effects of Bicycle Lanes in New York City, Chen et al., 2012
| Star Quality Rating: |  [View score details] |
| Rating Points Total: | 75 |
| Crash Modification Factor (CMF) | |
|---|---|
| Value: | 1.07 |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 0.059 |
| Crash Reduction Factor (CRF) | |
|---|---|
| Value: | -7 (This value indicates an increase in crashes) |
| Adjusted Standard Error: | |
| Unadjusted Standard Error: | 5.9 |
| Applicability | |
|---|---|
| Crash Type: | All |
| Crash Severity: | K (fatal),A (serious injury),B (minor injury),C (possible injury) |
| 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: | All |
| 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: | |
| Major Road Traffic Volume: | |
| Minor Road Traffic Volume: | |
| Average Major Road Volume : | |
| Average Minor Road Volume : | |
| Development Details | |
|---|---|
| Date Range of Data Used: | 1991 to 2008 |
| Municipality: | New York City |
| State: | NY |
| Country: | |
| Type of Methodology Used: | Before/after using comparison group |
| Sample Size (crashes): | 14609 crashes before, 4411 crashes after |
