Roadway segments were defined as the segments of non-interstate roadways between the approximately 1,300 intersections that were examined in the High Crash intersection Analysis. Crashes that occurred within 150 feet of the centerline of these roadways, but outside of the 250 foot buffer around the intersections, were assumed to have occurred on a segment.
High Crash Roadway Segments were ranked based on three factors:
· Crashes per Mile: the number of crashes that occurred within 150 feet of the centerline of a roadway per mile of length
· Crash Rate: the number of crashes within 150 feet of the centerline of a segment per million vehicle miles traveled (VMT) on that segment
· Crash Severity Index: An index that assigns a higher weight to crashes that result in injuries or fatalities than to crashes that result in property damage only
The cumulative rank of these three factors became the roadway segment’s score. A segment with a lower cumulative score was ranked higher on the list.
There were separate high crash roadway segment lists developed for each state. Additionally, since there were not a significant number of Bullitt or Oldham County segments on the Kentucky list, a separate list was created for each of those counties. Maps accompany each of the lists.