The Predictive Analysis application facilitates creating, managing, evaluating, and updating an agency’s Safety Performance Functions (SPFs) in an easily accessible interface.
Learn more about the Predictive Analysis application here.
Segments: Predictive Attributes
The following outlines Oklahoma’s chosen predictive attributes used to generate Optimal Fit SPF groupings for segments:
Functional Class
Interstate
Local
Major Collector
Minor Arterial
Minor Collector
Principal Arterial - Other
Principal Arterial - Other Freeways or Expressways
Urban/Rural
Rural
Urban/Municipal
Number of Lanes
1
2
3
4
6
8
10
Requirements for Optimal Fit Creation
Minimum Crashes: 100
Minimum Segments: 50
Intersections: Predictive Attributes
The following outlines Oklahoma’s chosen predictive attributes used to generate Optimal Fit SPF groupings for intersections:
Number of Legs
1 Leg
2 Leg
3 Legs
4 Legs
5 Legs
6 Legs
7 Legs
8 Legs
9 Legs
Control Type
Signal
Stop
Yield
Requirements for Optimal Fit Creation
Minimum Crashes: 100
Minimum Segments: 50