Information System and Method for Traffic in Road Network

• US 20110115648A1
• Filed: 03/19/2009
• Published: 05/19/2011
• Est. Priority Date: 03/20/2008
• Status: Active Grant

• Current Assignee: Association Pour La Recherche et Le Developpement Des Methodes et Processus Industriels Armines
• Original Assignee: Association Pour La Recherche et Le Developpement Des Methodes et Processus Industriels Armines
• Inventors: de la Fortelle, Arnaud, Laurgeau, Claude, Steux, Bruno
• Granted Patent: US 8,558,720 B2
• Time in Patent Office: Days
• US Class Current: 340/934
• CPC Class Codes: G08G 1/0104 Measuring and analyzing of parameters relative to traffic conditions

Abstract

The information system concerning traffic in a road network (R) comprises a server (30) comprising: means (34) for obtaining at least one real duration (DE_AB) of a run traveled by at least one vehicle (5) between two points (A, B) of the network, on the basis of information transmitted by a device (10) on board said vehicle (5); means (31) for statistically calculating, on the basis of said real durations (DR_AB), an estimated duration (DE_AB) for a run between two points (A, B) of the network; and means (34) for making the estimated duration (DE_AB) available to at least one terminal (40, 10).

Claims

1. An information system concerning traffic in a road network, the system comprising a server having means for making available to at least one terminal an estimated duration for a run between two points of the network, wherein said server comprises:

means for obtaining at least one real duration of a run traveled by at least one vehicle between two points of said network on the basis of information transmitted by a device on board the vehicle; and

means for statistically calculating said estimated duration on the basis of said real durations.

2. The information system according to claim 1, comprising at least one said device suitable for measuring said real duration and for transmitting it to said server via wireless communications means.

3. The information system according to claim 2, comprising at least one relay suitable for receiving the real duration transmitted by said device and or relaying it to said server.

4. The information system according to claim 3, wherein said relay is a fixed telecommunications base installed in said road network.

5. The information system according to claim 1, wherein at least one of said points of said network is a predetermined point, stored in a table of said device.

6. The information system according to claim 5, wherein said predetermined point is the position of a said relay.

7. An The information system according to claim 1, wherein said statistical calculation means use pairs of said points defining segments, of said segments having one end in common.

8. The information system according to claim 1, wherein said means for making said estimated duration available comprise a web site that is accessible by said terminal.

9. The information system according to claim 1, wherein said terminal is on board a vehicle, and wherein said means for making said estimated duration available comprise wireless communications means suitable for transmitting said estimated duration to said terminal.

10. An information method concerning traffic in a road network, the method being suitable or implemented by a server suitable for making available to at least one terminal an estimated duration of a run between two points of the network, wherein said method comprises:

a step of obtaining at least one real duration of a run traveled by at least one vehicle between two points of said network, on the basis of information transmitted by a device on board said vehicle; and

a step of statistically calculating said estimated duration on the basis of said real durations.

11. A computer program including instructions for executing the steps of the information method according to claim 10 when said program is executed on a computer.

12. A recording medium readable by a computer and having recorded thereon a computer program including instructions for executing the steps of the information method according to claim 10.