Patent
Method for refining traffic flow data
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TLDR
In this article, traffic information provided to a vehicle navigation device is refined by comparing the average speed of the vehicle against the average speeds of other vehicles traveling along the same road, and the operation of a traffic signal is controlled based on current traffic flow and distance from the traffic signal to alleviate traffic congestion.Abstract:
Traffic information, including traffic flow information and traffic incident information, obtained through a traffic management system for providing and facilitating the exchange of traffic information between a remote location and a vehicle may be presented to a user on a user display in the vehicle. In one embodiment, traffic information provided to a vehicle navigation device is refined by comparing the average speed of the vehicle against the average speed of other vehicles traveling along the same road. In another embodiment, the operation of a traffic signal is controlled based, in part, on the current traffic flow and distance from the traffic signal to alleviate traffic congestion.read more
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Determining road traffic conditions using data from multiple data sources
TL;DR: In this article, the authors describe techniques for assessing road traffic conditions in various ways based on obtained traffic-related data, such as data samples from vehicles and other mobile data sources traveling on the roads and/or from one or more other sources (such as physical sensors near to or embedded in the roads).
Patent
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Kenichiro Yamane,Junsuke Fujiwara,Yoshinori Endo,Kimiyoshi Machii,Masatoshi Kumagai,Takayoshi Yokota,Shigeru Matsuo +6 more
TL;DR: In this paper, a traffic information providing system externally acquires traffic information including information relating to the travel time of a link, calculates a travel time for a non-provision link to which no travel time is provided through estimate/complement operation.
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Route calculation method for a vehicle navigation system
TL;DR: In this paper, the authors propose a route calculation method based on traffic information, including flow information and incident information, obtained through a traffic management system for providing and facilitating the exchange of traffic information between a remote location and a vehicle.
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Patent
Automobile personal computer systems
G. Victor Treyz,Susan M. Treyz +1 more
TL;DR: In this paper, an automobile personal computer system is provided, where a user can wirelessly interact with merchants, communications facilities, information providers, computers at the home or office, and other entities.
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Integrated routing/mapping information
TL;DR: An Integrated Routing/Mapping Information System (IRMIS) as discussed by the authors links desktop personal computer cartographic applications to one or more handheld organizer, personal digital assistant (PDA) or “palmtop” devices.
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Navigation system for vehicles
TL;DR: In this paper, a navigation system including a present-position sensing system for sensing a present position; information storage medium for storing map information; an input device for entering into the system the destination, a roundabout point, a bypass, and the location desired to be traversed for entry of input indicating the execution of a route search from the present position sensed by the present-sensing system to the destination; an output device for outputting information route guidance; and a central processing unit including a route searching capability for searching for a route to destination; a route storage capability for
Patent
Vehicle information system
TL;DR: In this paper, a vehicle information system which includes an in-vehicle system 105 and a centralized server system 120. In this system, the operator specifies a destination to the server system which validates the destination.
Patent
System and methods for remotely accessing a selected group of items of interest from a database
TL;DR: In this article, a common database from a remote communications port, at any qualified location, to generate a map or other positional information which locates selected items of interest, e.g., businesses, stores, architectural sites, and the like.