Identification and classification of traffic conflicts
AssigneeKennesaw State University Research and Service Foundation, Inc.
InventorsJidong J. Yang, Ying Wang, Chih-Cheng Hung
Life of this patent
Estimating the term…
Abstract
A practical method and system for transportation agencies (federal, state, and local) to monitor and assess the safety of their roadway networks in real time based on traffic conflict events such that corrective actions can be proactively undertaken to keep their roadway systems safe for travelling public. The method and system also provides a tool for evaluating the performance of autonomous vehicle/self-driving car technologies with respect to safety and efficiency.
Claims20
A device comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the device to:
- receive, from at least one device, first data associated with a roadway;
- generate, based at least on the first data, second data indicative of the roadway, where the second data comprises a transformation of the first data;
- determine, based at least on the second data, movement of an object relative to the roadway;
- determine, based at least on a parameter of the at least one device, dimensions of the object, wherein the determining the dimensions of the object comprises:
- generating, based at least on the parameter of the at least one device, a three-dimensional model of at least a portion of one or more of the roadway or object;
- and
- determining, using the three-dimensional model, the dimensions of the object;
- determine, using the dimensions of the object, a timing of the movement of the object;
- and
- determine, based at least on the timing of the movement of the object, a conflict associated with the roadway.
A method for determining a probability of a conflict event associated with the moving object in traffic, the method comprising:
- receiving, by a computing device and from at least one device, first data indicative of traffic;
- determining, using at least the first data, a moving object of the traffic;
- determining, based at least on the first data and time data associated with the first data, a motion history of the moving object;
- and
- determining, based at least on the determined motion history of the moving object and a classification weight, a probability of a conflict event associated with the moving object.
A system comprising at least one capture device and a computing device in communication with the at least one capture device, where the computing device is configured to:
- receive, from the at least one capture device, information associated with a roadway, where the information comprises a plurality of data points over time;
- determine, based at least on the information, a moving object on the roadway and a dimension of the moving object on the roadway;
- generate, based at least on a time associated with one or more of the plurality of data points and the dimension of the moving object, a symbolic representation of motion of the moving object;
- and
- determine, based at least on the symbolic representation, a conflict event associated with the moving object.
Dependencies are inferred from the claim text.