CMF / CRF Details

CMF ID: 10560

Install adaptive traffic signal control

Description: ATSC is a traffic management strategy in which traffic signal timings change, or adapt, based on observed traffic demand. These systems utilize increased detection to continually collect data on observed demand, and signal timings are then re-optimized based on current data.

Prior Condition: No Prior Condition(s)

Category: Intersection traffic control

Study: Developing Florida-specific Mobility Enhancement Factors (MEFs) and Crash Modification Factors (CMFs) for TSM&O Strategies, Alluri et al., 2020

 
Star Quality Rating: 4 Stars   [View score details]
Rating Points Total: 130
Crash Modification Factor (CMF)
Value: 0.878
Adjusted Standard Error:
Unadjusted Standard Error: 0.004
Crash Reduction Factor (CRF)
Value: 12.2   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 0.4
Applicability
Crash Type: Rear end
Crash Severity: All
Roadway Types: Principal Arterial Other
Number of Lanes:
Road Division Type:
Speed Limit:
Area Type:
Traffic Volume:
Average Traffic Volume:
Time of Day:
If countermeasure is intersection-based
Intersection Type: Roadway/roadway (not interchange related)
Intersection Geometry: No values chosen.
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: 2011 to 2018
Municipality:
State: FL
Country: USA
Type of Methodology Used: 2
Sample Size (crashes): 787 crashes before, 629 crashes after
Sample Size (sites): 42 sites before, 42 sites after
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Dec-17-2020
Comments: