Distributed concept in ATMS software

While various advanced traffic management systems have been deployed all over the world, the number of approaches of the deployment remains two: centralized and distributed. Compared with the centralized system, the distributed system provides more reliability, scalability and resource sharing. The distributed system also eliminates the bottleneck caused by the communication of the large amount of traffic data. This paper presents a discussion of the distributed ATMS software, followed by a case study of the Wisconsin statewide ATMS software. Parts of the distributed ATMS system have been operated in Wisconsin for more than 10 years. Their experience is a very valuable resource for the development of ATMS.