CMF / CRF Details

CMF ID: 9825

Install right-in-right-out (RIRO) operations at stop-controlled intersections

Description:

Prior Condition: No Prior Condition(s)

Category: Access management

Study: Safety Effects of Turning Movement Restrictions at Stop-Controlled Intersections, Le et al., 2018

 
Star Quality Rating: 3 Stars   [View score details]
Crash Modification Factor (CMF)
Value: 1.02
Adjusted Standard Error:
Unadjusted Standard Error: 0.24
Crash Reduction Factor (CRF)
Value: -2   (This value indicates an increase in crashes)
Adjusted Standard Error:
Unadjusted Standard Error: 24
Applicability
Crash Type: Other
Crash Severity: All
Roadway Types: Not specified
Number of Lanes: 4 and 6
Road Division Type: Divided by Median
Speed Limit:
Area Type: Urban
Traffic Volume:
Average Traffic Volume:
Time of Day: All
If countermeasure is intersection-based
Intersection Type: Roadway/roadway (not interchange related)
Intersection Geometry: 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:
Municipality:
State: CA
Country: USA
Type of Methodology Used: Regression cross-section
Other Details
Included in Highway Safety Manual? No
Date Added to Clearinghouse: Oct-27-2018
Comments: This CMF represents the difference in crashes at signalized intersections downstream from RIRO intersections compared to signalized intersections downstream from full movement intersections.This CMF looks at Intersection-related crashes. Intersection-related crashes are defined as all crashes within 100 ft of intersection defined as 'intersection-related' by the reporting officer (all types and severities combined)