Control of traffic signal phases
US8823548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2010 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Apr 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0965
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Controlling a traffic signal phase at one or more intersections. A control system at an intersection is configured to operate in one of a first mode or a second mode. While operating the controller in the first mode, in response to a transit priority signal received by the control system from a vehicle assigned transit priority, a green phase of the traffic signal is extended in favor of the vehicle assigned transit priority. While operating the control system in the second mode, in response to a transit priority signal received by the control system from the vehicle assigned transit priority, a current non-green phase of the traffic signal is preempted to a green phase in favor of the vehicle assigned transit priority.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.