Successful operation of Advanced Traffic Management Systems (ATMS) and
Advanced Traveler Information Systems (ATIS) requires a dynamic traff
ic model that can operate in real time and reliably predict traffic co
ngestion. We present a dynamic traffic model system that consists of f
our modules: surveillance, origin-destination, congestion prediction a
nd control strategy generation. The heart of the system is a flexible
traffic simulation model. A prototype implementation of the proposed s
ystem is briefly described.