摘要: |
Many aspects of intelligent transportation systems are difficult and expensive to test in the field. Preliminary investigations of new concepts in these areas are best performed using computer models that can simulate field conditions with an appropriate degree of fidelity. In this way it is possible to test even extensive modifications of existing systems without endangering drivers, disrupting traffic, or spending vast sums on hardware that may not function effectively. Computer simulations are used to predict the effects of new technologies, as tools for optimizing existing systems, and as presentation aids to make complicated information easier to grasp. The Innovations Deserving Exploratory Analysis (IDEA) Program, managed by the Transportation Research Board, has sponsored all three types of simulation projects. The program is uniquely designed to explore and trial-test technical concepts to solve critical technology issues for transportation systems. The paper discusses the strategies used in the program and products emerging from the program for simulation and modeling of intelligent transportation systems (ITS) technology. |