Patents by Inventor Darcy Bullock

Darcy Bullock has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of identifying vehicle turning movements at intersections from trajectory data and reallocating green time therefor
    Patent number: 11915585
    Abstract: A method of generating an output movement layout for a traffic intersection is disclosed which includes receiving intersection geographical data, establishing a center point for the intersection, receiving vehicle global positioning system (GPS) data, establishing a radius of interest for the intersection based on the received vehicle GPS data, establishing entry and exit headings for each vehicle based on the GPS data, generating an angular cluster chart based on the entry and exit headings of each vehicle, and generating an output movement layout for the intersection based on the generated angular cluster chart. Further, a method for green time reallocation at traffic signals is disclosed that is based on the congestion experienced by vehicles identified as following specific movements.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: February 27, 2024
    Assignee: Purdue Research Foundation
    Inventors: Enrique Daniel Saldivar Carranza, Haoxiang Howell Li, Darcy Bullock
  • METHOD OF IDENTIFYING VEHICLE TURNING MOVEMENTS AT INTERSECTIONS FROM TRAJECTORY DATA AND REALLOCATING GREEN TIME THEREFOR
    Publication number: 20230019772
    Abstract: A method of generating an output movement layout for a traffic intersection is disclosed which includes receiving intersection geographical data, establishing a center point for the intersection, receiving vehicle global positioning system (GPS) data, establishing a radius of interest for the intersection based on the received vehicle GPS data, establishing entry and exit headings for each vehicle based on the GPS data, generating an angular cluster chart based on the entry and exit headings of each vehicle, and generating an output movement layout for the intersection based on the generated angular cluster chart. Further, a method for green time reallocation at traffic signals is disclosed that is based on the congestion experienced by vehicles identified as following specific movements.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 19, 2023
    Applicant: Purdue Research Foundation
    Inventors: Enrique Daniel Saldivar Carranza, Haoxiang Howell Li, Darcy Bullock