module 01 - ecat introduction - ohio department of ... · pdf fileohio department of...
TRANSCRIPT
Restricted parameters are mainly for AADT ranges because the Safety Performance
Function was developed based on a given data set. If an site has AADT that is outside the
range that the SPF was developed, it would not be predicting crashes as accurately.
Module 1 - Introduction To ECAT 2014
5ODOT SPPM