The Highway Traffic Signal Inventory is a geodatabase containing information about highway traffic signals in the seven-county CMAP region. The inventory, based on...

Crash rates were calculated for expressway/tollway segments in the Chicago region based on Illinois Department of Transportation (IDOT) crash data from the years 2008-2012. The...

Maps presenting 24 hour traffic volumes for Will County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for South Cook County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for North Cook County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for McHenry County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for Lake County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for Kendall County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for Kane County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for northeastern Illinois, IDOT District 1 scanned from CMAP library.

Maps presenting 24 hour traffic volumes for DuPage County scanned from CMAP library.

Maps presenting 24 hour traffic volumes for the City of Chicago scanned from CMAP library.

CMAP has prepared a 2014 update to the popular Expressway Atlas. The desktop reference for 2014 includes summaries of vehicles miles traveled (VMT) by expressway. In addition,...

The 2012 Expressway Atlas provides a desktop reference of average annual daily traffic (AADT) volumes and other traffic system statistics, as well as graphics, for northeastern...