| Demographic Profile of the Greater Lansing Region | Comparative Analysis of Population Counts |
| Reports show more than 80% of Centenarians are Women | Tri-County Region Interim Population Projections |
| Transportation Maps Index | Historical and PA451 Maps Index |
Tri-County Regional Planning Commission's innovative Traffic Count Database System (TCDS) acts as a regional depository as well as an interactive map tool for current and historical traffic count data collected from the following jurisdictions: Michigan Department of Transportation, Ingham, Clinton & Eaton County Road Commissions, City of Lansing, City of East Lansing, Michigan State University and Delta Township. Recently added to the interactive map under "TOOLS" are GIS layers depicting TIP Projects (2009-2013) as well as 2035 modeled traffic trend deficiencies for AM and PM rush hours. For more information and help on how to use, please refer to the convenient "Help" link provided on the main page.
| Chandler's Crossing | Lake Lansing | GM Moores River |
| Michigan Avenue Corridor | Spartan Stadium | Old Courthouse - Charlotte |
![]() Michigan Avenue Corridor |
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