System and method for optimizing traffic flow using vehicle signals

Patent metadata

Field	Value
Publication number	US-11636757-B2
Application number	US-202017008329-A
Country	US
Kind code	B2
Filing date	Aug 31, 2020
Priority date	Aug 31, 2020
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

Systems and methods for optimizing traffic flow through an intersection are disclosed. In an embodiment, the method includes receiving positional data indicating a current location of a first vehicle intending to pass through the intersection, receiving directional data indicating an intended direction of the first vehicle through the intersection from the current location, determining, based on the positional data and the directional data, whether an intended path of the first vehicle through the intersection interferes with an alternative path through the intersection, and adjusting a traffic signal at the intersection to decrease an amount of time to pass through the intersection via the alternative path.

First claim

What is claimed is:

1. A method for optimizing traffic flow through an intersection, the method comprising:
receiving positional data indicating a current location of a first vehicle intending to pass through the intersection;
receiving directional data indicating an intended direction of the first vehicle through the intersection from the current location;
determining, based on the positional data and the directional data, whether an intended path of the first vehicle through the intersection interferes with an alternative path of a second vehicle through the intersection; and
adjusting a traffic signal at the intersection to decrease an amount of time for the second vehicle to pass through the intersection via the alternative path.

2. The method of claim 1 , wherein
at least one of: (i) the positional data includes global positioning system data from the first vehicle; and (ii) the directional data includes turn signal data from the first vehicle.

3. The method of claim 1 , further comprising
receiving orientation data indicating a directional orientation of the first vehicle, and
using the orientation data with the positional data and the directional data to determine whether the intended path of the first vehicle interferes with the alternative path through the intersection.

4. The method of claim 1 , wherein
the second vehicle is facing a different direction than the first vehicle at the intersection.

5. The method of claim 1 , wherein
the second vehicle is facing a same direction as the first vehicle at the intersection.

6. The method of claim 1 , further comprising
determining whether the intended path of the first vehicle through the intersection interferes with an alternative path for a pedestrian passing through the intersection along a walkway.

7. The method of claim 1 , wherein
adjusting the traffic signal includes increasing or decreasing a duration of the traffic signal for at least one direction through the intersection.

8. The method of claim 1 , wherein
adjusting the traffic signal includes altering an order of traffic signals for alternative lanes through the intersection.

9. A method for optimizing traffic flow through an intersection, the method comprising:
receiving positional data indicating a current location of a first vehicle intending to pass through the intersection;
receiving directional data indicating an intended direction of the first vehicle through the intersection from the current location;
determining, based on the positional data and the directional data, an intended path of the first vehicle through the intersection;
determining that a plurality of second vehicles are stopped at the intersection;
determining whether a total number of the plurality of second vehicles stopped at the intersection can be reduced without interfering with the intended path; and
adjusting a traffic signal at the intersection to decrease an amount of time needed to reduce the total number of the plurality of second vehicles stopped at the intersection.

10. The method of claim 9 , wherein
at least one of: (i) the positional data includes global positioning system data from the first vehicle; and (ii) the directional data includes turn signal data from the first vehicle.

11. The method of claim 9 , further comprising
receiving the positional data and the directional data, respectively, from one or more of the plurality of second vehicles stopped at the intersection,
calculating a time needed to allow several of the plurality of second vehicles to pass through the intersection, and
adjusting the traffic signal based on the calculated time.

12. The method of claim 9 , wherein
upon determining that the total number of the plurality of second vehicles stopped at the intersection can be reduced without interfering with the intended path, adjusting the traffic signal to allow at least one of the plurality of second vehicles to immediately proceed through the intersection.

13. The method of claim 9 , wherein
upon determining that the total number of the plurality of second vehicles stopped at the intersection cannot be reduced without interfering with the intended path, adjusting the traffic signal to allow the first vehicle to immediately proceed through the intersection.

14. The method of claim 9 , wherein
adjusting the traffic signal includes increasing or decreasing a duration of the traffic signal.

15. The method of claim 9 , wherein
adjusting the traffic signal includes altering an order of traffic signals for alternative lanes through the intersection.

16. A method for optimizing traffic flow through an intersection, the method comprising:
receiving, from a first vehicle stopped at the intersection, first positional data indicating a first current location and first directional data indicating a first intended direction through the intersection;
receiving, from a second vehicle stopped at the intersection, second positional data indicating a second current location and second directional data indicating a second intended direction through the intersection;
determining, based on the first positional data and the first directional data, a first intended path of the first vehicle through the intersection;
determining, based on the second positional data and the second directional data, a second intended path of the second vehicle through the intersection;
determining whether the first current position of the first vehicle prevents the second vehicle from proceeding through the intersection along the second intended path; and
adjusting a traffic signal at the intersection to allow the first vehicle to pass through the intersection along the first intended path.

17. The method of claim 16 , wherein
determining whether the first current position of the first vehicle prevents the second vehicle from proceeding through the intersection along the second intended path includes determining the first vehicle and the second vehicle to be stopped within a same lane.

18. The method of claim 16 , further comprising
calculating a time needed to allow the first vehicle to pass through the intersection along the first intended path, and
adjusting the traffic signal based on the calculated time.

19. The method of claim 16 , further comprising
determining that a plurality of vehicles stopped at the intersection intend to proceed through the intersection along the first intended path,
calculating a time needed to allow the plurality of vehicles to proceed through the intersection along the first intended path, and
adjusting the traffic signal based on the calculated time.

20. The method of claim 16 , further comprising
determining that a plurality of vehicles stopped at the intersection intend to proceed through the intersection along the first intended path,
determining a number of the plurality of vehicles to allow to proceed through the intersection along the first intended path based on a distance from the intersection; and
adjusting the traffic signal to allow the number of the plurality of vehicles to proceed through the intersection along the first intended path.

Assignees

• Nissan North America Inc

Inventors

• Kobashi Atsuhide
• Ostafew Christopher
• Witwicki Stefan

Classifications

• G08G1/0112 Primary

  from the vehicle, e.g. floating car data [FCD] · CPC title

• G08G1/056

  with provision for distinguishing direction of travel · CPC title

• G08G1/0145 Primary

  for active traffic flow control · CPC title

• G08G1/083

  Controlling the allocation of time between phases of a cycle · CPC title