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TRAFFIC STATE ESTIMATION WITH INTEGRATION OF TRAFFIC, WEATHER, INCIDENT, PAVEMENT CONDITION, AND ROADWAY OPERATIONS DATA

  • US 20140222321A1
  • Filed: 02/05/2014
  • Published: 08/07/2014
  • Est. Priority Date: 02/06/2013
  • Status: Abandoned Application
First Claim
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10. A traffic state estimation system, comprising:

  • a computer processor; and

    at least one computer-readable storage medium operably coupled to the computer processor and having program instructions stored therein, the computer processor being operable to execute the program instructions to model one or more estimations of a traffic state within a plurality of data processing modules, the plurality of data processing modules including;

    a plurality of data assimilation components configured to ingest input data relative to traffic flow, the plurality of data assimilation components at least including a traffic data aggregation module, a weather data aggregation module, and a roadway operations data aggregation module, wherein the input data relative to traffic flow includes traffic data, observed and predicted weather data, incident data, pavement conditions data, and roadway operations data;

    a cell transmission model configured to integrate the input data relative to traffic flow with road link data representative of a segmented roadway network;

    a module configured to apply a regression analysis to at least one of the traffic data, the observed and predicted weather data, the roadway operations data, pavement condition data and predictions, and the incident data to separate recurrent and non-recurrent traffic conditions causing delay to identify and explain at least one reason for the delay at specific road links of the segmented roadway network; and

    a filter configured to apply weighting coefficients to generate an ensemble of new roadway network traffic states in one or more traffic prediction modules, the ensemble of new roadway network traffic states representing a probability distribution of predicted future traffic states for specific road links in the segmented roadway network.

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