Road network analysis system
US8731808B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2013 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jul 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A road network analysis system detects major changes in a road network based on probe information from a plurality of vehicles. The probe information is tabulated and the change in the amount of traffic is calculated for each road with a predetermined time interval. If a remarkable change in the amount of traffic is detected for a road before and after a specific baseline day, it is determined that a major change in the road network affecting the traffic has occurred in the vicinity of the road, and the road is specified as a change-related road. A path search may be performed between the endpoints of a plurality of change-related roads, and the searched paths that have the most overlap with the searched paths are selected so as to identify the change-related roads which are commonly affected by the same cause and the endpoints thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.