This project includes a traffic data needs assessment, creation of a network-based travel demand model, and preparation for multi-modal traffic simulation. The network model presents data of daily traffic flows seasonally throughout the park, providing park administrators with a source to consult when assessing the impact of road closure, tour bus rerouting or relocation, or changes in parking lot capacity. Volpe also worked on potentially enhancing traveler information systems that would assist traffic circulation analysis, daily park operations, information distribution, emergency traffic management, and alternative transportation system management and operations.