Using location data to determine traffic information
First Claim
1. A method of determining current traffic condition, said method comprising:
- receiving a location of a mobile unit over a data network;
computing an actual velocity of said mobile unit using said location; and
calculating a parameter using said actual velocity and location, said parameter indicating traffic conditions surrounding said mobile unit.
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Accused Products
Abstract
A system and a method for determining and disseminating current traffic information is presented. A traffic data compilation computer linked to a data network collects location data from mobile units, each of which is associated with an identification number. The computer compiles the location data, calculates the velocity of each mobile unit, compares the velocity of each mobile unit against speed limit data stored in a memory, and stores the difference. The traffic data compilation computer determines the traffic condition based on the difference between the velocity of each mobile unit and the speed limit.
In addition, traffic data compilation computer may determine the fastest route between point A and point B under the current traffic conditions. Traffic data compilation computer determines the possible routes between point A and point B, retrieves the velocity data from a database, and derives the estimated travel time for each of the possible routes.
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Citations
36 Claims
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1. A method of determining current traffic condition, said method comprising:
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receiving a location of a mobile unit over a data network;
computing an actual velocity of said mobile unit using said location; and
calculating a parameter using said actual velocity and location, said parameter indicating traffic conditions surrounding said mobile unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for determining current traffic condition, said device comprising:
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a processing unit;
a database coupled to said processing unit, said database storing results of calculation performed by said processing unit; and
a memory for storing maps and road data coupled to said processing unit. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32)
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28. A method of estimating a travel time between a first geographic location and a second geographic location, said method comprising:
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determining a route;
receiving locations of a plurality of mobile units over a data network;
computing average velocity of said plurality of mobile units on said route; and
deriving said travel time using the distance of said route.
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33. A system for providing current traffic condition, said system comprising:
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a mobile unit;
a wireless communication network accessible by said mobile unit;
a data network linked to said wireless communication network; and
a processing unit linked to said data network. - View Dependent Claims (34, 35, 36)
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Specification