Assessing road traffic speed using data from multiple data sources
US8909463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2014 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0968
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Techniques are described 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). The road traffic conditions assessment based on obtained data samples may include various filtering and/or conditioning of the data samples, and various inferences and probabilistic determinations of traffic-related characteristics of interest from the data samples. In some situations, the inferences include repeatedly determining current traffic flow characteristics and/or predicted future traffic flow characteristics for road segments of interest during time periods of interest, such as to determine average traffic speed, traffic volume and/or occupancy, and include weighting various data samples in various ways (e.g., based on a latency of the data samples and/or a source of the data samples).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.