Development of the Texas revenue estimator and needs determination system (T.R.E.N.D.S.) model.
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2010-05-01
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By Ellis, David
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Edition:Technical report; Sept. 2008-June 2009.
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Abstract:The original purpose of Project 0-6395-TI was to assess the usefulness and viability of the Joint Analysis
Using Combined Knowledge (J.A.C.K.) model as a planning and forecasting tool. What originally was
named the J.A.C.K. model was substantially revised, expanded and renamed the Texas Revenue Estimator
and Needs Determination System (T.R.E.N.D.S.) model. The T.R.E.N.D.S. model is designed to provide
transportation planners, policy makers and the public with a tool to forecast revenues and expenses for the
Texas Department of Transportation (TxDOT) for the period 2010 through 2035 based on a user-defined
level of transportation investment. The user, through interactive windows, can control a number of variables
related to assumptions regarding statewide transportation needs, population growth rates, fuel efficiency,
federal reimbursement rates, inflation rates, taxes, fees and other elements. The output is a set of tables and
graphs showing a forecast of revenues, expenditures and fund balances for each year of the analysis period
based on the user-defined assumptions. The version of the model developed under this project is a beta-test
version to solicit comments from metropolitan planning organizations (MPOs) across the state.
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