GIS representation of the UDOT Route System (main routes, ramps and collectors). Routes are represented as PolylineM features where the m coordinate is in miles. PolylineMs have been calibrated at end points and also some intermediate points as described in the UDOT linear referencing system (LRS) route descriptions for state route junctions, interstate bridge deck (begin and end) and other miscellaneous features.Updated: June 26, 2014