CMF / CRF Details

CMF ID: 11583

Convert intersection to roundabout

Description:

Prior Condition:  Conventional stop-controlled and/or signalized intersection

Category: Intersection geometry

Study: Traffic Safety Evaluation of Pedestrians and Bicyclists at Roundabouts in Minnesota, Wagner et al., 2023

 
Star Quality Rating:2 Stars  [View score details]
Rating Points Total:55
Crash Modification Factor (CMF)
Value:0.849
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:15.1  (This value indicates a decrease in crashes)
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type:Vehicle/bicycle, Vehicle/pedestrian
Crash Severity:All
Roadway Types:Not specified
Street Type:Two-Way
Minimum Number of Lanes:
Maximum Number of Lanes:
Number of Lanes Direction:
Number of Lanes Comment:
Crash Weather:All
Road Division Type:
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:All
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, More than 4 legs
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 2019
Municipality:
State:MN
Country:USA
Type of Methodology Used:
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Sep 23, 2024
Comments:CMF is presented in Table 3.7 in the report.