CMF / CRF Details

CMF ID: 11083

Install Intersection Safety Devices

Description: Intersection Safety Devices (ISD) combine red-light running enforcement and speed enforcement at intersections.

Prior Condition: Intersections with No Intersection Safety Devices

Category: Advanced technology and ITS

Study: Lesson Learned from the Application of Intersection Safety Devices in Edmonton, Contini and El-Basyouny, 2016

Star Quality Rating: 4 Stars   [View score details]
Rating Points Total: 110
Crash Modification Factor (CMF)
Value: 0.745
Adjusted Standard Error:
Unadjusted Standard Error: 0.021
Crash Reduction Factor (CRF)
Value: 25.47   (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 2.06
Crash Type: All
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: 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: 3-leg,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: 2006 to 2013
Municipality: Edmonton
State: AB
Country: Canada
Type of Methodology Used:
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Mar-16-2022
Comments: This is an Intersection Level CMF.