TREDIS provides a series of basic reports for auditing and confirming user inputs, tracing calculations and summarizing benefit/cost and economic impact findings.

(1) Direct Travel Impact - Base Scenario
Audit Report for the “No Build” or “Base” Scenario. Values are shown to verify user inputs and display calculated values of vehicle-miles, vehicle-hours, passengers, tons, speeds, access, cost, safety and environmental effects.All values are shown by region and mode for the future target year.

(2) Direct Travel Impact - Project Scenario
Audit Report for a given “Project” Scenario. Values are shown to verify user inputs and display calculated values of vehicle-miles, vehicle-hours, passengers, tons, speeds, access, cost, safety and environmental effects. All values are shown by region and mode for the future target year.

(3) Direct Travel Benefit from Completing the Project
Calculated travel cost savings plus values of non-money impacts realized by adopting the “Project” scenario instead of the “Base” Scenario. Values are calculated as the difference in impact between the two scenarios, and represent the benefit in time, expense, access, safety and environmental impacts. Overall benefits are shown by region and mode for the future target year, and distinguish the direct travel cost savings for locally-based residents and businesses.

(4) Direct Travel Cost Savings - by Industry
Calculated breakdown of the direct travel cost savings for existing locally-based residents & businesses. The breakdown distinguishes benefits by economic sector – including local households and categories of local business (based on the North American Industrial Classification System). Benefits by sector of the economy are shown separately by region and mode for the future target year.

(5) Direct Market Access Benefit - by Industry
Calculated breakdown of the direct market access benefit resulting from the “Project” scenario instead of the “Base” Scenario. For road travel, the access benefit is measured as the percentage expansion of population coverage for labor and truck delivery markets. For rail, air and water dependent travel, the access benefit is measured as the percent improvement in road access time to intermodal terminals and frequency/breadth of travel available at those terminals. Benefits by sector of the economy are shown by region and mode for the future target year.

(6) Summary of Direct Project Impact– by Industry
Summary of direct, long-term (target year) impacts that are input to the regional economic model. This includes the direct travel cost savings for existing business and industry (from Report 4) and the direct market access benefit for new business delivery markets (from Report 5), plus user-reported dollar valuation of other social and environmental benefits. All values are shown by region and are broken down by sector of the economy for the future target year. Impacts of construction and ongoing operations and maintenance are also shown.

(7) Summary of Long-Term Economic Impact of the Project - by Industry
Results of economic model analysis on long-term economic impacts of project completion. Impacts are measured as business output, gross domestic product, wage income and jobs. All values are shown by region and are broken down by sector of the economy, for the future target year.

(8) Summary of Short-Term Economic Impact of Construction - by Industry
Results of economic model analysis on short-term economic impacts of project development spending. Impacts are measured as business output, gross domestic product, wage income and jobs. All values are shown by region and are broken down by sector of the economy for the peak construction year.

(9) Summary of Overall Economic Impact - by Year
Summary of economic model analysis of changes over time, from construction to after project completion. Impacts are measured as business output, value added (GDP), wage income and jobs. All values are shown by region and are shown year-by-year.

(10) Benefit-Cost Analysis
Summary of total project impact/cost and benefit/cost ratios, using five ways of measuring impacts or benefits: (1) transport system efficiency, (2) transport user cost savings, (3) total transport user benefit, (4) total social benefit, and (5) regional income benefit. All ratios are shown calculated on the basis of a discounted net present value of the benefit and cost streams. The components of these different measures are also shown.

(11) Supplementary Reports - Background Data Tables describing the selected study area, including employment, output, value added and wage income, all by 3-digit NAICS code. Additional tables describe strengths and weaknesses of the region from an economic development perspective -- factors which can affect business attraction. Also, maps of the commute access areas and truck delivery access areas are now available.  More info on mapping.