CMF / CRF Details

CMF ID: 11088

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)
Adjusted Standard Error:
Unadjusted Standard Error:0.035
Crash Reduction Factor (CRF)
Value:11.55  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:3.53
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
Type of Methodology Used:
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Mar 16, 2022
Comments:This is an Approach Level CMF for all Approaches with Intersection Safety Devices.