TREDIS -Transportation Economic Impact System

By: Edr Group  09-12-2011
Keywords: transportation, economic development, investment strategies

TREDIS is the web-based economic impact and benefit-cost analysis tool for transportation projects and programs. It is the only system that spans all modes of passenger and freight transportation - including highway, rail, marine and air travel, and all types of intermodal terminals and facilities. It is also highly detailed in its representation of both freight and passenger costs and benefits, including the value of improving transportation reliability, access and system connectivity. TREDIS is used by local, regional and state transportation agencies to:


• Weigh benefits and costs of alternative transportation investment strategies and policies

• Assess the economic development impacts of investing in new transport infrastructure
• Evaluate benefits of improving access to consumer, producer, and labor markets
• Estimate economic impacts of constructing a transportation terminal or facility
• Estimate the impact of congestion on households and industries (by sector)
• Examine different strategies for managing a transportation corridor
• Perform a comprehensive freight performance evaluation

For any of these applications, TREDIS can be used as a part of a comprehensive planning solution that interacts with existing transportation models and regional economic models. Alternatively, TREDIS can be used by itself as a sketch planning tool to provide "back-of-the-envelope" estimates. The level of analysis sophistication is up to the user. Projects can be set up and run in as little as 15 minutes.

TREDIS and its components have been successfully applied in 23 US states (from California to Wisconsin to Massachusetts), and 7 Canada provinces (from British Columbia to Ontario to Nova Scotia).

Keywords: economic development, investment strategies, transportation

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