DESIGN OF A MOTORWAY INFORMATION SYSTEM AND NETWORK THAT ENABLES ATT APPLICATIONS
The deployment of measurement, monitoring, and communication infrastructures along most motorways and major highways greatly increases the feasibility of implementing dedicated high speed communication networks capable of supporting multimedia services in real time and sophisticated control architecture. For these goals to be accomplished, the characteristics of the telecommunications network serving the motorway environment must be specified to provide adequate transfer modes, multiplexing and switching systems, and communication protocols to ensure the required quality of service to all applications. The present paper will discuss the main issues and alternatives in terms of the above mentioned telecommunication networks and systems, and their relation with the structure and capabilities of integrated real-time traffic control systems. The main services to be supported will be considered, with the aim of dimensioning the network appropriately. A hierarchical structure is envisaged, with a high speed backbone network along the roadside, interconnecting peripheral segments; the latter are lower speed "local" networks, dedicated to the interconnection of various data collection and actuator devices deployed along a road stretch and along major surrounding roads. Access to the backbone is provided by multiplexers that are situated, where possible, at toll stations or in relation to inflow-outflow points. The motorway control center, which is one of the nodes on the backbone, is in turn interconnected with others through a public or private network. To account for applications requiring direct communications and interworking with on-board networks on the vehicles, the presence of base stations on the local networks will be considered, forming a wireless cellular structure, which allows the exchange of information between the vehicle and the traffic control center(s). A specific Italian motorway will also be examined in this framework as a case study.
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Supplemental Notes:
- Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
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Corporate Authors:
VERTIS
TORANOMOM 34 MORI BUILDING 1-25-5
TORANOMON, MINATOKU, TOKYO 105 Japan -
Authors:
- Davoli, F
- GIORDANO, A
- Vernazza, T
- Volta, E
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Conference:
- Steps Forward. Intelligent Transport Systems World Congress
- Location: Yokohama, Japan
- Date: 1995-11-9 to 1995-11-11
- Publication Date: 1995-11
Language
- English
Media Info
- Pagination: p. 1522
Subject/Index Terms
- TRT Terms: Driver information systems; High speed ground transportation; High speed vehicles; Integrated systems; Intelligent transportation systems; Networks; Real time control; Speed; Telecommunications
- Geographic Terms: Italy
- Old TRIS Terms: Real-time systems
- Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; Railroads; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 00723430
- Record Type: Publication
- Report/Paper Numbers: Volume 4
- Files: TRIS
- Created Date: Jul 23 1996 12:00AM