Samenvatting
One of the important efforts in the intelligent vehicle highway systems (IVHS) program is the development of a system architecture to guide development and implementation decisions. Five alternative architectures for advanced traffic management and advanced traveler information systems are compared. These architectures were created to focus on several key architectural issues. The qualitative evaluation focuses on characteristics of the alternative architectures that affect performance, cost, and risk. Additionally, the evaluation stresses issues connected with starting up IVHS services and evolving to more advanced systems and addresses institutional concerns. (A)