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Traffic management system including a layered management structure

  • US 6,694,247 B2
  • Filed: 11/21/2001
  • Issued: 02/17/2004
  • Est. Priority Date: 11/23/2000
  • Status: Expired due to Term
First Claim
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1. A traffic management system (TMSYS) for managing in a road network (RDN) the vehicle traffic (C1, Cx) on a physical layer (PL), said traffic management system (TMSYS) comprising a layer structure including at least:

  • a) a traffic signalling layer (TSL) including a plurality of traffic signalling units (TSU) for monitoring or controlling the vehicle traffic (C1, Cx) and a traffic signalling layer information exchange interface (TSL-EX) adapted a1) to output traffic signalling information (TSI) about the vehicle traffic (C1, Cx) on the physical layer (PL);

    a2) to receive traffic control information (TCI) for controlling the vehicle traffic (C1, Cx); and

    a3) to output traffic guidance information (TGI) to the vehicles (C1, Cx) on the physical layer (PL); and

    b) a traffic control layer (TCL) including a packet switched control network (PSCN), in which the packet traffic (CP1, CPx) is controlled with a predetermined packet control method to correspond to or simulate the vehicle traffic (C1, Cx) on the physical layer (PL), including a traffic control layer information exchange interface (TCL-EX) adapted b1) to receive traffic signalling information (TSI) about the vehicle traffic (C1, Cx) on the physical layer (PL);

    b2) to output traffic control information (TCI) for controlling the vehicle traffic (C1, Cx);

    b3) to output packet signalling information (PSI) about the packet traffic (CP1, CPx); and

    b4) to receive packet control information (PCI) for controlling the packet traffic (CP1, CPx) in the packet switched control network (PSCN).

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