Diagnostic system, method, and recording medium for signalized transportation networks
First Claim
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1. A diagnosis system for an adaptive signal control system in a network, said system comprising:
- a processor; and
a memory, the memory storing instructions to cause the processor to;
identify location and a severity of supply-demand mismatches for a traffic state of an adaptive signal control system;
identify a location of propagation paths and congestion hubs within the network based on a probability that the supply-demand mismatch of the traffic state will propagate from a first sensor to a second sensor in the adaptive signal control system based on the identified supply-demand mismatches;
identify a loss or a gain in a throughput over the propagation paths; and
predict propagation paths in the network at a different location.
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Abstract
A diagnosis system for an adaptive signal control system in a network, the diagnosis system including a traffic state identification device configured to estimate a traffic state describing a supply-demand mismatch by identifying a relationship between real time data feed from a sensor and a control strategy of the adaptive signal control system and a network transition model device configured to diagnose the supply-demand mismatch and an evolution of the supply-demand mismatch on a network level based on the relationship and infrastructure data of the network.
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Citations
20 Claims
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1. A diagnosis system for an adaptive signal control system in a network, said system comprising:
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a processor; and a memory, the memory storing instructions to cause the processor to; identify location and a severity of supply-demand mismatches for a traffic state of an adaptive signal control system; identify a location of propagation paths and congestion hubs within the network based on a probability that the supply-demand mismatch of the traffic state will propagate from a first sensor to a second sensor in the adaptive signal control system based on the identified supply-demand mismatches; identify a loss or a gain in a throughput over the propagation paths; and predict propagation paths in the network at a different location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer-implemented diagnosis method for an adaptive signal control system of a network, said diagnosis method comprising:
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identifying a location and a severity of supply-demand mismatches for a traffic state of an adaptive signal control system; identifying a location of propagation paths and congestion hubs within the network based on a probability that the supply-demand mismatch of the traffic state will propagate from a first sensor to a second sensor in the adaptive signal control system based on the identified supply-demand mismatches; identifying a loss or a gain in a throughput over the propagation paths; and predicting propagation paths in the network at a different location. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A computer program product for a diagnosis program for an adaptive signal control system in a network, the computer program product comprising a computer-readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to:
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identify a location and a severity of supply-demand mismatches for a traffic state of an adaptive signal control system; identify a location of propagation paths and congestion hubs within the network based on a probability that the supply-demand mismatch of the traffic state will propagate from a first sensor to a second sensor in the adaptive signal control system based on the identified supply-demand mismatches; identify a loss or a gain in a throughput over the propagation paths; and predict propagation paths in the network at a different location. - View Dependent Claims (17, 18, 19, 20)
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Specification