Examples of studies utilizing TREDIS are shown below, broken down by type of study area. To see further details of these studies, please click on the "Case Descriptions" option on the left side menu column. It is important to note that TREDIS is designed for both large study areas (such as multi-state regions) and smaller areas (such as municipalities), as well as county and corridor-level studies. TREDIS can also be used for analyzing user benefits at a neighborhood level, though broader economic impacts are usually not modeled below the municipal impact level.

Multi-State
Appalachian Development Highways
I-95 Corridor
Northeast CanAm Connections

Statewide
Kansas DOT - Long Range Plan (Preservation)
Maine DOT - Multimodal Statewide Long-Range Plan
Massachusetts Freight Study 
Michigan Five-Year Plan
Oregon Statewide Highway Plan

Metro - Regional
Chicago Metropolis 2020 Transportation Plan
Vancouver Major Commercial Transportation System
Portland Metro– Regional Transportation Plan
Fort Worth Mobility Study
Chicago Metra Commuter Rail System
Toronto Metrolinx Study

Sub-State Corridor
Edmonton-Calgary High Speed Train
California High Speed Train
Massachusetts South Coast Commuter Rail Corridor
New York State Route 12
Ontario MTO – Niagara Gateway Highway Corridor
Pennsylvania I-80 Study
Wisconsin DOT Short Line Railroad Study

City
Chicago Freight Plan
Chicago RTA Transit System
Durham, Ontario Transit Study