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1. WO2020220089 - IMPROVED TRAFFIC LIGHT ASSEMBLY

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS:

1. A traffic light assembly comprising a light signal adapted to emit red, amber and green light in a sequence; the light signal being capable of communicating to a driver by a change in colour that an action is required to be undertaken at a location on a road;

wherein the light signal comprises an area from which light is emitted; while the light is being emitted, a flashing sequence pattern is generated within the area to enhance the meaning of the signal communicated to the driver;

the sequence pattern being formed by changing the colour of some of the light being emitted, and or by ceasing to emit some of the light, and so that the sequence pattern displayed during emission of red, amber or green light is different in each configuration;

wherein an intermediate pattern that is different in configuration from any of the sequence patterns is provided in the area at a transition between at least one of the red, amber and green lights in the sequence to further communicate to the driver that the light signal is about to change and that action is about to be required.

2. The traffic light assembly of claim 1, wherein the flashing sequence pattern displayed during emission of red, amber or green light comprises:

when the light is red at least one flashing circle or cross pattern preferably two; within the area intended to communicate a stop action to the driver;

when the light is amber at least one flashing circle pattern within the area intended to communicate a stop action to the driver;

wherein when the light is green there are chevrons moving over the area intended to communicate a move forward action to the driver.

3. The traffic light assembly of claim 1 or 2, wherein the intermediate visual is a flashing sequence pattern.

4. The traffic light assembly of claim 1 or 2, wherein the intermediate visual is motionless pattern-free light.

5. The traffic light assembly of any one of any one of the preceding claims, wherein upon changing from red to green, the area changes from a red circle of light with flashing circles, to a green circle of light with flashing chevrons or moving lines.

6. The traffic light assembly of any one of any one of the preceding claims, wherein upon changing from green to amber, the area changes from green with flashing chevrons or moving lines, to pattern free amber with no motion.

7. The traffic light assembly of claim 6, wherein pattern free amber with no motion is motionless for a predetermined period of time, wherein the predetermined period of time is at least about 1 or about 2 seconds.

8. The traffic light assembly of any one of any one of the preceding claims, wherein upon changing from amber to red, the area changes from amber with flashing dots to red with no motion.

9. The traffic light assembly of claim 8, wherein red with no motion is motionless for a predetermined period of time, wherein the predetermined period of time is at least about 30, 60, 90, 120 seconds.

10. The traffic light assembly of any one of any one of the preceding claims, wherein light is emitted from an array of light emitting diodes (LEDs).

11. The traffic light assembly of any one of any one of the preceding claims, wherein at least one sequence pattern is formed by flashing white light.

12. The traffic light assembly of any one of any one of the preceding claims, wherein at least one sequence pattern is formed by causing omission of light.

13. A method of controlling traffic using a traffic light assembly according to any one of the preceding claims.

14. A traffic light assembly, when programmed to operate according to any one of the preceding claims.

15. A traffic light assembly according to claim 15, wherein the program is implemented by a Programme Logic Controller (PLC).

16. A method of controlling a driverless vehicle comprising programming the driverless vehicle to respond to the traffic light assembly according to any one of claims 1 to 12.