Method and system for determining vehicle traffic...

Details Method and system for determining vehicle traffic... Method and system for determining vehicle traffic...

2008-10-08

2011-11-22

Afshar, Kamran (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456600

Reexamination Certificate

active

08064925

ABSTRACT:
Methods and systems for determining the density and velocity of wireless communication devices (WCDs) on a road are provided. A preferred embodiment involves determining a set of WCDs that are being served by a plurality of wireless coverage areas that intersect the road. This set of WCDs is narrowed to include only those WCDs that are (1) presumed to be in motion and (2) within a predefined geographic definition of the road. The density and aggregate velocity of the resulting WCDs is determined. From these determinations, the traffic density and aggregate traffic velocity of vehicles on the road can be estimated and an associated output can be provided.

REFERENCES:
patent: 6236933 (2001-05-01), Lang
patent: 6381533 (2002-04-01), Crane et al.
patent: 6810321 (2004-10-01), Cook
patent: 6842620 (2005-01-01), Smith et al.
patent: 6965325 (2005-11-01), Finnern
patent: 1 463 354 (2004-09-01), None
patent: WO 01/01367 (2001-01-01), None

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