| 摘要 |
PROBLEM TO BE SOLVED: To support a driver to recognize that a traffic signal at an intersection turns red with a high probability . SOLUTION: Roadside equipment 5 is prepared in a signal 3 of an intersection 2, and information of a red signal is transmitted to a communication area 6. In-vehicle equipment 7 is mounted on an automobile 1, the information of red signal is received from the roadside equipment 5, and it is informed by an information means then a driver is urged. Even if the driver passes over the red signal by mistake, it can be noticed by an informing operation. It is informed by sound at first, and next, by braking lightly so as to feel that. COPYRIGHT: (C)2004,JPO&NCIPI
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