Virginia Tech has led transit agencies throughout the United States through EMS implementation with an emphasis on sustainability. The 2012 EMS case studies are listed below.
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| Capital Metropolitan Transportation Authority | Austin, TX |
| Champaign-Urbana Mass Transit District | Urbana, IL |
| Foothill Transit | West Covina, CA |
| Intercity Transit | Olympia, WA |
| King County Metro | Seattle, WA |
| Long Beach Transit | Long Beach, CA |
| Metropolitan Atlanta Rapid Transit Authority | Atlanta, GA |
| Port Authority of Allegheny County | Pittsburgh, PA |
| San Joaquin Regional Transit District | Stockton, CA |
| Southeastern Pennsylvania Transportation Authority | Philadelphia, PA |
Click here for 2012 Municipal case studies.
