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 Montana’s chosen predictive attributes used to generate Optimal Fit SPF groupings for segments:
Urban/Rural
Urban
Rural
Terrain Type
Flat or Rolling
Level or Rolling
Mountainous
Number of Lanes
1-Lane
2-Lane
3-Lane
4-Lane
5-Lane
6-Lane
Divided/Undivided-New
Divided Highway
Undivided Highway
Freeway
Requirements for Optimal Fit Creation
Minimum Crashes: 100
Minimum Segments: 50