CMF / CRF Details

CMF ID: 10264

Change horizontal curve radius from X to Y (feet)

Description:

Prior Condition:  Horizontal curve radius of X feet

Category: Alignment

Study: Study on Motorcycle Safety in Negotiation with Horizontal Curves in Florida and Development of Crash Modification Factors, Wang et al., 2018

 
Star Quality Rating:3 Stars  [View score details]
Rating Points Total:80
Crash Modification Factor (CMF)
Value:Equation
Adjusted Standard Error:
Unadjusted Standard Error:
Crash Reduction Factor (CRF)
Value:Equation
Adjusted Standard Error:
Unadjusted Standard Error:
Applicability
Crash Type:Other
Crash Severity:All
Roadway Types:Not specified
Street Type:
Minimum Number of Lanes:2
Maximum Number of Lanes:2
Number of Lanes Direction:
Number of Lanes Comment:
Crash Weather:Not specified
Road Division Type:Undivided
Minimum Speed Limit:
Maximum Speed Limit:
Speed Unit:
Speed Limit Comment:
Area Type:Rural
Traffic Volume:Minimum of 460 to Maximum of 25180 Annual Average Daily Traffic (AADT)
Average Traffic Volume:4269 Annual Average Daily Traffic (AADT)
Time of Day:All
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:2005 to 2015
Municipality:
State:FL
Country:USA
Type of Methodology Used:
Sample Size (crashes):439 crashes
Sample Size (miles):763 miles
Sample Size (mile-years):8393 mile-years
Other Details
Included in Highway Safety Manual?No
Date Added to Clearinghouse:Dec 07, 2019
Comments:This CMF applies to motorcycle-involved crashes on horizontal curves.