The revolution in computer technology, which has doubled the computer speed every two years and has recently provided abundant computer memory, has forced the transportation professionals to rethink how they should model the events and the entities in the current planning and simulation models. TRANSIMS represents the next generation planning/simulation that has adopted the revolution in the information technology to represent the demand and the supply in a transportation network. TRANSIMS is based on representing each person in an urban area including his and her daily activities, and on modeling his and her travel movements on a detailed represented transportation network. A major TRANSIMS technical feature is that the identity of individual synthetic travelers is maintained throughout the entire simulation and analysis architecture. All synthetic travelers are generated as part of a synthetic population developed for a specific metropolitan region using a variety of data sources including census, surveys, etc. Activity times and locations are computed for each individual. The plans generated by the Route Planner maintain individual identities, as does the Traffic Microsimulator. The resulting simulation output can provide a detailed, second-by-second history of every traveler in the system over a 24-hour day. A variety of impact analyses can be conducted using these results. For the covering abstract see ITRD E128680.
Samenvatting