The upgrade includes a major change in the model s interface and its computational tools. We propose to develop three test cases using the TwoPass model to demonstrate its capabilities. Identify three test projects that include rural two-lane highways. Document the geometric design and traffic volume data for each project. Prepare input data files for each of the three test projects.
Complete simulation runs for the three test projects.
Document the results of the simulations. The results of this work will be usable by ITD s Traffic Section and Roadway Design Section by providing an operational analysis of a given highway design. The model is also used to study the operational effects of a variety of geometric changes to a highway including realignment, cross-sectional improvements, and the addition of passing lanes. The model assesses the effects of roadway geometrics, traffic controls, driver behavior, and vehicle characteristics on the performance of a given design. The model produces simulated estimates of operating speeds, travel times, and delays.