CMF / CRF Details
CMF ID: 9747
Presence of driveway on an intersection approach corner
Description:
Prior Condition: No driveways within 50 feet of any approach corner at a signalized intersection
Category: Access management
Study: Safety Evaluation of Corner Clearance at Signalized Intersections, Le et al., 2018
Star Quality Rating: | [View score details] |
Rating Points Total: | 120 |
Crash Modification Factor (CMF) | |
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Value: | 0.69 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.19 |
Crash Reduction Factor (CRF) | |
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Value: | 31 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 19 |
Applicability | |
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Crash Type: | Sideswipe |
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: | Not specified |
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: | Minimum of 10406 to Maximum of 93000 Annual Average Daily Traffic (AADT) |
Minor Road Traffic Volume: | Minimum of 500 to Maximum of 48000 Annual Average Daily Traffic (AADT) |
Average Major Road Volume : | 37945 Annual Average Daily Traffic (AADT) |
Average Minor Road Volume : | 8598 Annual Average Daily Traffic (AADT) |
Development Details | |
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Date Range of Data Used: | 2009 to 2011 |
Municipality: | |
State: | CA,NC |
Country: | United States |
Type of Methodology Used: | Regression cross-section |
Sample Size (crashes): | 523 crashes |
Sample Size (sites): | 275 sites |
Sample Size (site-years): | 825 site-years |