PR Network 2026

The Michigan Department of Transportation (MDOT) manages several Linear Referencing Systems (LRS) for the State including the Physical Road (PR), Control Section (CS) and Route networks. These networks include Michigan's Roads, Rails, Trails & more. MDOT also partners with the Michigan State Police (MSP), Department of Natural Resources (DNR), Department of Technology Management & Budged (DTMB) and others to manage the Michigan LRS. For more information, please view the Michigan Linear Referencing Home Page. Field Definitions & Data Dictionary can be found here: Roads & Highways Field Definitions