R. Meier, A. Harrington, and V. Cahill, A Distributed Framework for Intelligent Transportation Systems, Proceedings of 12th World Congress on Intelligent Transport Systems (ITSWC2005), The 12th World Congress on Intelligent Transport Systems (ITSWC2005), San Francisco, California, USA, 2005, 1 - 12
Integrating individual intelligent transportation systems into comprehensive
platforms is a key challenge faced by transport authorities in the provision of optimal
service s to users. The use of an ITS architecture encourages structured development and
integration of ITS systems that leads to maximization of benefits by minimizing redundancies
and maximizing capabilities. This paper presents a distributed framework for a multi-layered
ITS architecture that has been designed for integrating information generated and used by
future as well as existing intelligent transportation systems and applications. The iTransIT
framework provides a data model that allow complex ITS domains to be successfully
decomposed into a number of data layers. This multi-layered data model may be distributed
across multiple systems and exploits the overlapping temporal and spatial aspects of traffic
information to allow the federation of data from diverse ITS systems. Moreover, the
abstractions used to compose the data model combined with the range of interaction
paradigms supported by the iTransIT architecture allow interoperation between systems
based on different communication technologies. This provides the framework with the
flexibility to enable a gradual integration of systems over time thereby reducing integration
restrictions on previously deployed systems while catering for the as yet unknown
requirements of future and novel systems .
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