| 摘要 |
A traffic signal control system using a car navigation system and a manual direction selection device is provided to control optimal traffic signal by selecting a traveling direction using the manual direction selection device. A traffic signal control system includes a traffic signal controller(300), a navigation system(100), and a manual direction selection device(200). The traffic signal controller requests traveling direction information from the manual direction selection device and navigation system, and controls signals based on responded information. The navigation system receives the traveling direction information from the traffic signal controller, extracts traveling direction from a path database, and responses traveling direction to the traffic signal controller. The manual direction selection device receives the traveling direction information from the traffic signal controller, selects manually traveling direction, and responses traveling direction to the traffic signal controller.
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