| 摘要 |
A switchable conductive path in the form of an electrical circuit that inhibits flashing of the front directional signal lamp for a duration determined by the vehicle operator, while allowing the corresponding rear directional signal lamp to flash normally. Hence, a third state of directional signal logic is achieved; the first two logic states being both front and rear directional signal lamps flashing, or both front and rear directional signal lamps off. An inhibit control is provided for the vehicle operator to activate the tri-state signaling mode when otherwise normal signaling would entice someone to enter the roadway between his present location and that of the intended turn. The tri-state signaling mode serves a dual purpose: the rear directional signal continues to flash normally alerting traffic behind the vehicle of intent to turn, while the absence of front directional signal flashing notifies potential interlopers of intent to travel beyond their position. After passing the potential interloper, the inhibit control is released, and the tri-state mode is deactivated, whereupon normal directional signal operation resumes.
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