The TxDOT Public-Private Feasibility Analysis Model: Project Summary Report (5-4565-01-S)

This project summary report summarizes the research performed in Texas Department of Transportation (TxDOT) Project 5-4565-01. The development of transportation infrastructure through public-private partnerships should result in favorable economic returns for both the public and private sectors. An economic analysis method that facilitates the equitable sharing of costs in public-private partnerships was proposed in TxDOT Project 0-4565. TxDOT funded Implementation Project 5_4565_01 as an extension of Project 0_4565 to provide an in-house economic model capable of analyzing public investments in railroad infrastructure. The TxDOT Public-Private Feasibility Analysis Model was developed using Microsoft Excel® due to the regular use of this software within TxDOT, and due to the capacity of @RISK add-in decision tools to allow project risks to be included in the analyses. The model is a single Excel file with worksheets programmed to evaluate project economics for the public and private sectors. A user manual accompanies the economic model in order to assist the user in modeling public-private partnerships. This manual contains guidelines, definitions, and descriptions of internal calculations that may provide clarity on how the model generates results.