Illinois/Reference information

Statewide

Maps

• General Highway Maps for cities and counties from IDOT
• Illinois Virtual Tollway
• USGS National Map Viewer (sometimes quite out of date)
• 2011 Boundary and Annexation Survey Maps from US Census Bureau
• Functional Classification Maps by County
• Functional Classification for entire State

Other Resources

• Google Map Tools (useful for drawing arbitrary polygons to use in AM requests)

Chicagoland

• Cook County
  • Chicago
  • GIS Consortium Covering Glenview, Winnetka, Glencoe, Northbrook, Wheeling, Morton Grove, Skokie, Des Plaines, Park Ridge, Lincolnwood, Elk Grove Village, Norridge, Riverside, Tinley Park
  • Schaumburg
  • Arlington Heights
• DuPage County
  • GIS Consortium Covering Glen Ellyn, Oak Brook, Woodridge
• Kane County
• Kendall County
• Lake County
  • GIS Consortium Covering Mundelein, Lake Forest, Lincolnshire, Buffalo Grove, Deerfield, Highland Park
• McHenry County
• Will County
• Older Kennedy Revesible times
• Newer Kennedy Revesible times with Friday Change

Downstate Counties

Note: links are GIS resources unless otherwise indicated - Sites marked with a $ have fee based access.

• Adams
• [Alexander]
• [Bond]
• Boone
• [Brown]
• [Bureau]
• [Calhoun]
• Carroll
• Cass
• Champaign
  • City of Champaign
• Christian
• Clark
• Clay
• Clinton
• Coles
• Crawford
• Cumberland
• De Witt
• DeKalb
• Douglas
• Edgar
• [Edwards]
• Effingham
• Fayette Coming soon
• Ford
• Franklin$
• [Fulton]
• [Gallatin]
• [Greene]
• Grundy
• [Hamilton]
• [Hancock]
• [Hardin]
• [Henderson]
• Henry
• [Iroquois]
• Jackson
• [Jasper]
• Jefferson
• Jersey
• Jo Daviess
• [Johnson]
• Kankakee
• Knox
• [LaSalle]
  • City of Ottawa
• Lawrence
• Lee
• Livingston $
• Logan
• Macon
• Macoupin
• Madison
• Marion
• [Marshall]
• Mason
• Massac
• McDonough
• McLean
• [Menard]
• [Mercer]
• Monroe
• [Montgomery]
• Morgan 1 | Morgan 2
• [Moultrie]
• Ogle
• Peoria
• [Perry]
• [Piatt]
• [Pike]
• [Pope]
• [Pulaski]
• Putnam
• Randolph
• [Richland]
• Rock Island
• [Saline]
• Sangamon
• Schuyler
• [Scott]
• Shelby
• St. Clair
• [Stark]
• Stephenson (use Winnebago County's GIS & pan left)
• Tazewell
  • City of Pekin
• [Union]
• Vermilion
• [Wabash]
• [Warren]
• [Washington]
• [Wayne]
• White
• Whiteside $
• Williamson
• Winnebago
• Woodford

Road Categorization

See Road names/USA, Road types/USA and Illinois/Roads by type (coming soon)

Road Construction

• Statewide: IDOT Illinois Tollway
• IDOT District 1 (Cook-DuPage-Kane-Lake-McHenry-Will): Road Closure News releases
• City of Chicago: City Daily Road Closure list

See Illinois/Construction for a list of LONG TERM Road Closures & Changes to Traffic Flow that impact the Waze Map. (coming soon)

Useful Links

Instead of trudging through the hard to follow wiki layout to answer a question, or having to do a Google search to find common pages, here are some pages that are often useful for review.

Editing Guides

If you have not seen any of these guides before, please familiarize yourself with them.

• Road types/USA
• Road names/USA
• At-grade connectors
• When (Not) to Split a Two-Way Road
• Junction Style Guide (a must read)
• Creating and Editing a roundabout
• Parking Lots
• Cul-de-sacs & Loops

Forum Topics