Delay Performance Measure Methodology

Monthly Delay

Delay is calculated for both directions of I-15 between Payson and Brigham City as well as in Southern Utah for all hours every day.

Annual Delay

Delay is calculated for both directions of I-15 between Payson and Brigham City as well as in Southern Utah for all hours every day.

Normalized Annual Delay Score

The normalized delay score is determined by dividing the annual delay value by the annual target value. The target values for 2014, 2015, and 2016 would be 1,125,064, 1,849,932 and 1,886,100 respectively.