Traffic information calculation device, traffic information...

Details Traffic information calculation device, traffic information... Traffic information calculation device, traffic information...

2005-02-04

2009-08-18

Crosland, Donnie L (Department: 2612)

Communications: electrical

External condition vehicle-mounted indicator or alarm

Highway information

C340S995130, C340S995190, C701S117000, C701S118000

Reexamination Certificate

active

07576661

ABSTRACT:
A traffic information calculation device includes: a probe information database for accumulating vehicle information including a vehicle position and the time of the vehicle position; a branch judgment unit for judging the branch direction of the vehicle at an intersection according to the position of the intersection on the map database and the vehicle information; and intersection traffic information calculation unit for calculating the wait time or jam length of the branch direction at the intersection from the vehicle information. Thus, the intersection traffic information calculation unit can calculate the traffic information for each branch direction at the intersection and it is possible to obtain accurate traffic information for each branch direction even at an intersection having five directions or more.

REFERENCES:
patent: 5428545 (1995-06-01), Maegawa et al.
patent: 6438490 (2002-08-01), Ohta
patent: 7103470 (2006-09-01), Mintz
patent: 2002/0116118 (2002-08-01), Stallard et al.
patent: 6-348997 (1994-12-01), None
patent: 2000-311286 (2000-11-01), None
patent: 2001-307291 (2001-11-01), None
patent: 2003-281674 (2003-10-01), None
patent: 2003-288673 (2003-10-01), None
patent: 2004-272839 (2004-09-01), None
International Search Report for PCT/JP2005/002087, dated Mar. 22, 2005.

Affiliated with

Also associated with

Rating

Traffic information calculation device, traffic information... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Traffic information calculation device, traffic information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traffic information calculation device, traffic information... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4127557