CMF / CRF Details
CMF ID: 317
Install a traffic signal
Description:
Prior Condition: No Prior Condition(s)
Category: Intersection traffic control
Study: NCHRP Report 491: Crash Experience Warrant for Traffic Signals, McGee et al., 2003
Star Quality Rating: | [View score details] |
Rating Points Total: | 100 |
Crash Modification Factor (CMF) | |
---|---|
Value: | 0.66 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.45 |
Crash Reduction Factor (CRF) | |
---|---|
Value: | 34 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 45 |
Applicability | |
---|---|
Crash Type: | Angle |
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: | |
Minimum Speed Limit: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | Urban |
Traffic Volume: | |
Average Traffic Volume: | |
Time of Day: | |
If countermeasure is intersection-based | |
Intersection Type: | Roadway/roadway (not interchange related) |
Intersection Geometry: | 3-leg |
Traffic Control: | Stop-controlled |
Major Road Traffic Volume: | |
Minor Road Traffic Volume: | |
Average Major Road Volume : | |
Average Minor Road Volume : |
Development Details | |
---|---|
Date Range of Data Used: | |
Municipality: | |
State: | |
Country: | |
Type of Methodology Used: | Before/after using empirical Bayes or full Bayes |