Valerie R Yakich

US Patent:

20110106416, May 5, 2011

Filed:

Apr 22, 2010

Appl. No.:

12/765742

Inventors:

Christopher Laurence Scofield - Seattle WA, US
Robert C. Cahn - Federal Way WA, US
Jesse Hersch - Bellevue WA, US
Wayne Stoppler - Bothell WA, US
Valerie Raybold Yakich - Renton WA, US
Te-Ming Huang - Bellevue WA, US
Alec Barker - Woodinville WA, US

International Classification:

G08G 1/00

US Classification:

701119, 701117

Abstract:

Techniques are described for determining and using information regarding expected road traffic flow conditions information for vehicles traveling on roads. The expected road traffic flow conditions for a particular portion of a road may be generated by combining historical representative information about road traffic flow conditions for that road portion with current information about actual traffic flow on or near that road portion. The combination may, for example, provide benefits for estimating expected traffic flow conditions information for roads with structural flow obstructions that cause reduced traffic flow at certain road locations and times—for example, the expected traffic flow conditions information may be based at least in part on fitting or otherwise adapting partial actual traffic flow information about a vehicle's actual travel path to a historical travel profile for a road that includes representative traffic flow information for various combinations of road locations and time periods.