Traffic management system including a layered management structure
First Claim
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).
1 Assignment
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Accused Products
Abstract
The invention relates to a traffic management system (TMSYS) including a layered structure of management layers. The system comprises a physical layer (PL) on which the actual traffic takes place. A traffic signalling layer (TSL) controls the traffic on the physical layer (PL) and collects traffic information (TSI) about the vehicle traffic. A traffic control layer (TCL) comprises a packet switched control network (PSCN) for routing packets to correspond or simulate the vehicle traffic. A service application layer (SAL) provides special services to the traffic control layer (TCL) and/or the traffic signalling layer (TSL). A communication layer (CL) is used for communicating the information. Each layer comprises an exchange interface for receiving/transmitting information to one or more of the other layers. The layered structure of the traffic management system allows in particular a flexible adaptation, exchange or extension of functionalities provided in each layer.
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Citations
5 Claims
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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:
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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). - View Dependent Claims (2, 3, 4, 5)
c) a service application layer (SAL) including at least one server (SERV) for providing services to the traffic signalling layer (TSL) or the traffic control layer (TCL), including a service application layer information exchange interface (SAL-EX) adapted c1) to receive said traffic signalling information (TSI) about the vehicle traffic (C1, Cx) on the physical layer (PL);
c2) to receive said packet signalling information (PSI) about the packet traffic (CP1, CPx) in the packet switched control network (PSCN);
c3) to output said packet control information (PCI) for controlling the packet traffic (CP1, CPx); and
c4) to output said traffic control information (TCI) for controlling the vehicle traffic (C1, Cx) on the traffic signalling layer (TSL).
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3. A traffic management system according to claim 1, comprising:
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d) a communication layer (CL) providing communication facilities (CF) for communicating information, including a communication layer information exchange interface (CL-EX) adapted d1) to receive said traffic signalling information (TSI) about the vehicle traffic (C1, Cx) on the physical layer (PL) from the traffic signalling layer (TSL); and
d1′
) to output said traffic signalling information (TSI) communicated through the communication facilities (CF) to the traffic control layer (TCL) or the services application layer (SAL); and
d2) to receive said traffic control information (TCI) from the traffic control layer (TCL) and/or the service application layer (SAL); and
d2′
) to output said traffic control information (TCI) communicated through the communication facilities (CF) to said traffic signalling layer (SAL).
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4. A traffic management system according to claim 3, wherein
d) said communication layer information exchange interface (CL-EX) is further adapted d3) to receive said traffic control information (TCI) from the traffic control layer (TCL) or the service application layer (SAL); - and
d3′
) to output said traffic control information (TCI) communicated through the communication facilities (CF) to the traffic signalling layer (TSL).
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5. A traffic management system according to claim 1, wherein
said traffic control layer (TCL) comprises one or more traffic control domains and said traffic signalling layer (TSL) comprises one or more traffic signalling domains.
Specification