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When changing lanes on a multi-lane highway, how far before lane change should you signal?

  1. Immediately before changing lanes.

  2. Only when actually changing lanes.

  3. At least 50 feet before beginning to change lanes.

  4. At least 100 feet before beginning to change lanes.

The correct answer is: At least 100 feet before beginning to change lanes.

Signaling at least 100 feet before beginning to change lanes is essential for ensuring safety on the road. This allows sufficient time for other drivers to notice your intention to change lanes and react appropriately. It gives them a chance to adjust their speed or position, reducing the likelihood of collisions. Starting your signal well in advance is particularly important in multi-lane situations where other vehicles may be traveling at high speeds. While shorter distances mentioned in the other options might not provide adequate warning, signaling 100 feet ahead promotes visual communication between drivers, making the roadway safer for everyone involved.