CMF / CRF Details

CMF ID: 11174

Add wildlife crossing structure with fencing


Prior Condition:  No wildlife crossing structure with fencing

Category: Access management

Study: Investigating the Safety Effectiveness of Wildlife–Vehicle Crash Countermeasures using a Bayesian Approach with a Comparison between Carcass Removal Data and Traditional Crash Data, Irfan U. Ahmed and Mohamed M. Ahmed, 2022

Star Quality Rating:2 Stars  [View score details]
Rating Points Total:55
Crash Modification Factor (CMF)
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:70  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Type:Other
Crash Severity:All
Roadway Types:Not specified
Street Type:Two-Way
Minimum Number of Lanes:
Maximum Number of Lanes:
Number of Lanes Direction:Both Directions
Number of Lanes Comment:Number of lanes without treatment ranged from 2 to 5 lanes. Number of lanes with treatments ranged from 2 to 3 lanes.
Crash Weather:Not specified
Road Division Type:
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:
Traffic Volume:Minimum of 1042 to Maximum of 13429 Annual Average Daily Traffic (AADT)
Average Traffic Volume:
Time of Day:Not specified
If countermeasure is intersection-based
Intersection Type:
Intersection Geometry:
Traffic Control:
Major Road Traffic Volume:
Minor Road Traffic Volume:
Average Major Road Volume :
Average Minor Road Volume :
Development Details
Date Range of Data Used:2015 to 2018
Type of Methodology Used:
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Aug 25, 2022
Comments:CMF is for wildlife-vehicle crashes during the summer.