Traffic control systems for vehicle spacing to dissipate traffic gridlock

• US 7,092,815 B2
• Filed: 02/23/2004
• Issued: 08/15/2006
• Est. Priority Date: 12/17/2003
• Status: Expired due to Fees

• Current Assignee: Technocracy LLC
• Original Assignee: Vrbia Incorporated
• Inventors: Dort, David Bogart
• Primary Examiner(s): Tran, Dalena
• Application Number:
  US10/786,177
• Publication Number:
  US 20040260455A1
• Time in Patent Office: 904 Days
• Field of Search: 701/117, 701/213, 701/96, 701/301, 701/115, 701/35, 340/995.13, 340/905, 340/933, 340/919, 340/928, 340/935, 340/941, 340/903, 180/169, 180/170, 180/178, 180/287
• US Class Current: 701/117
• CPC Class Codes: G08G 1/096725 where the received information generates an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096758 where no selection takes place on the transmitted or the received information
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: G08G 1/096783 where the origin of the information is a roadside individual element

Abstract

The present invention is designed to complement the existing transportation infrastructure in order to alleviate ever-worsening traffic congestion in problematic areas by minimizing the impact of driver “bunching” habits and/or external events that lead to congestion problems. Events alleviated by the present invention may happen at naturally occurring roadway infrastructures such as merges, lane shifts, and exits, and under conditions like rush hour, accidents, stand-stills, and HOV lane activation times. Further, vehicles allowing their speed and spacing to be controlled should have access to high-flow lanes. This invention will best and most safely be implemented at low speeds when congestion is most problematic and bunching habits prevent the dissipation of gridlock. In particular embodiments, the invention will regulate multiple vehicle accelerations (non-negative acceleration) once a low threshold speed has been reached through the transmission of signals to receivers in properly equipped vehicles. The transmitters are connected to a computational network that allow for increased spacing over a zone or a plurality of zones. In the preferred embodiment, only non-negative acceleration is governed keeping the safety features of the non-negative acceleration governor to a minimum.

Claims

1. A traffic control system for use in reducing traffic congestion including:

a plurality of non-negative acceleration limitation control units, each of said plurality of control units including a reception unit and a transmission unit, wherein a plurality of said reception units may be controlled by one of said transmission units;

each of said plurality of reception units operatively coupled with a vehicle'"'"'s acceleration system;

wherein at least a portion of said non-negative acceleration limitation control units are activated when a speed detection device detects that a vehicle has reached a low threshold speed, wherein said reception units are activated by a transmitter at an entrance to a traffic congestion reduction zone

wherein said acceleration of a first vehicle controlled by a first of said non-negative acceleration limitation control units is always less than a second vehicle being controlled by a second of said non-negative acceleration limitation control units, when said transmitter is active.

2. A device for assisting the control of traffic congestion including:

a non-negative acceleration governor operatively coupled to a vehicle acceleration capability, wherein said non-negative acceleration governor cannot limit the positive acceleration of said vehicle unless the speed of a vehicle reaches a low threshold; and

an activation device coupled to said non-negative acceleration governor, wherein said non-negative acceleration governor is activated only by said activation device.

3. The device as recited in claim 2 further comprising a distance detection device in said activation unit, said distance detection device being for detecting a distance between two vehicles.

4. The device as recited in claim 3, where said activation unit activates said non-negative acceleration unit when a threshold distance is detected.

5. The device as recited in claim 2, wherein said low threshold speed is zero.

6. The device as recited in claim 2, further including a receiver operatively coupled to said activation device.

7. The device as recited in claim 6, wherein said receiver is configured to receive EMF signals corresponding to a non-negative acceleration limit, said activation device translating said EMF signals and providing them to said non-negative acceleration governor.

8. A method for reducing traffic congestion including the acts of:

placing a plurality of non-negative acceleration limiting reception devices in each of a plurality of vehicles;

activating at least one of said plurality of non-negative acceleration limiting reception devices in a congestion reduction zone; and

transmitting instructions to at least one of said plurality of non-negative acceleration limiting reception devices in at least one vehicle located in said congestion reduction zone, wherein said transmitted instructions cause the non-negative acceleration of a first vehicle to be limited to less than that of a second vehicle that is physically located in front of said first vehicle.

9. The traffic congestion reduction method as recited in claim 8, wherein said activation takes place when a traffic event is detected.

10. The traffic congestion reduction method as recited in claim 8, further including the step of deactivating said at least one of said plurality of non-negative acceleration limiting device.

11. The traffic congestion reduction method as recited in claim 8, wherein said transmitter is located at the base on an on-ramp, such that a vehicle may not enter a highway until instructions are transmitted to said non-negative acceleration limited reception device.