Road marking system

• US 20060029466A1
• Filed: 10/01/2003
• Published: 02/09/2006
• Est. Priority Date: 10/18/2002
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Van Der Poel, Lucas Leo Desiree
• Granted Patent: US 7,137,754 B2
• Time in Patent Office: Days
• US Class Current: 404/9
• CPC Class Codes: E01F 9/20 Use of light guides, e.g. fibre-optic devices
• CPC Class Codes: E01F 9/559 illuminated
• CPC Class Codes: E01F 9/582 illuminated
• CPC Class Codes: F21S 8/022 intended to be recessed in a floor or like ground surface, e.g. pavement or false floor
• CPC Class Codes: F21W 2111/02 for roads, paths or the like
• CPC Class Codes: F21W 2111/06 for aircraft runways or the like

Abstract

A road-marking system has at least a first lighting module (4) provided in a road surface (1). The lighting module (4) is provided with a plurality of light emitting surfaces (14, 14′, . . . ). The lighting module (4) has connection means (7, 7) for providing electrical connection between the lighting module (4) and the electrical current supply conductor (6). Preferably, the current supply conductor (6) is provided in a duct (8) provided with an opening (8′) at the location of the lighting module (4).

Claims

1. A road marking system comprising at least one lighting module (4) provided in a road surface (1), wherein the lighting module (4) is provided with coupling means (7, 7′

) for coupling an electrical conductor (6) provided in the road surface (1) and the lighting module (4) to one another.

2. A road marking system as claimed in claim 1, characterized in that the electrical conductor (6) is provided in a cable duct (8) which is provided with an opening (9) for the passage of the coupling means (7, 7′

) at the area of the lighting module (4).

3. A road marking system as claimed in claim 2, characterized in that the road surface (1) comprises a first asphalt layer (2) and a second asphalt layer (3) situated below the first, the cable duct (8) being provided in said second asphalt layer (3).

4. A road marking system as claimed in claim 3, characterized in that the first asphalt layer (2) comprises open-pore asphalt concrete.

5. A lighting module (4) for use in a road marking system as claimed in claim 1.

6. A road surface (1) provided with a road marking system as claimed in claim 1.

7. A method of manufacturing a road marking system as claimed in claim 1, comprising the steps of:

providing at least one electrical conductor (6) in a road surface (1);

providing at least one lighting module (4) in the road surface (1) ; and

connecting the lighting module (4) and the electrical conductor (6) to one another.

8. A method as claimed in claim 7, characterized in that the electrical conductor (6) is provided in a cable duct (8) which is provided with an opening (8′

) for the passage of the coupling means (7, 7′

) at the area of the lighting module (4).

9. A method as claimed in claim 8, characterized in that a sawcut is provided in the road surface (1) for the accommodation of the lighting module (4) in the road surface (1), the cable duct (8) being provided with the opening (8′

) before the lighting module is mounted.

10. A method as claimed in claim 9, characterized in that the opening (8′

) in the cable duct (9) is created while the sawcut is being provided in the road surface (1).