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 South Carolina’s chosen predictive attributes used to generate Optimal Fit SPF groupings for segments:
Urban/Rural
Rural
Urban
Functional Class
Local
Major Collector
Minor Arterial
Minor Collector
Principal Arterial - Interstate
Principal Arterial - Other
Principal Arterial - Other Freeways & Expressways
Total Number of Lanes
1
2
3
4
5
6
7
8
9
Requirements for Optimal Fit Creation
Minimum Crashes: 100
Minimum Segments: 50
Intersections: Predictive Attributes
The following outlines South Carolina’s chosen predictive attributes used to generate Optimal Fit SPF groupings for intersections:
Urban/Rural
Rural
Urban
Maximum Number of Lanes
1
2
3
4
5
6
7
8
Number of Legs
2
3
4
5
6
7
8
9
10
11
Requirements for Optimal Fit Creation
Minimum Crashes: 100
Minimum Intersections: 50