Roadway Data

The Log Point file is a sequential listing of landmarks like intersections, railroad crossings, city limit boundaries, bridges, etc. that you would cross as you drive along the road in the increasing Reference Post direction. The Reference Point associated with each landmark consists of the previous Reference Post (located on the roadway shoulder) plus the decimal fraction of a mile past the post. Also included:

• Distance [odometer] from the beginning of the route in the ACCUM miles column
• Recent traffic volume

• 800 Routes
  800 Routes are route segments that formerly were part of a trunk highway which was turned back. The turn back order did not cover the segments included in the 800 route so a permanent artificial number is assigned in the 800-899 range.
• 900 Routes
  900 Routes are for route segments that formerly were part of a trunk highway which was turned back. These are temporary numbers assigned while we wait for an official local designation. These numbers are assigned in the 900-999 range.
• These numbers are not official route numbers but just for assigning data to unnumbered routes.

 

Read the new policy for trunk highway logpoint listings - February, 2012 (Word)