Individuals have reported receiving text messages claiming to be from MDOT and demanding toll payments. This is a scam. MDOT does not operate any toll roads; messages should be ignored and deleted immediately. Learn more from MDOT Director Bradley C. Wieferich and Attorney General Dana Nessel.
A geographic information system (GIS) combines geography with computer systems to capture, store, analyze, and display location-based data. In simple terms, it is a map linked to a database.
MDOT’s GIS Unit supports the use of GIS software and hardware to solve spatial problems and improve transportation decision making. The unit manages enterprise GIS databases, linear referencing systems, web services, ArcGIS Online, the Open Data Portal, GIS news and training, and the Transportation Asset Management System (TAMS).
Transforming data into information, and information into knowledge.
Questions? Contact MDOT-GIS@Michigan.gov.
Linear Referencing
Linear Referencing stores and manages spatial data along measured linear features. MDOT currently uses Esri Roads and Highways to maintain its Linear Refencing System (LRS) and related data. The LRS webpage provides details and access to the latest versioned data.
Learn more about Michigan Linear Referencing.
GIS maps