Should a driver do before entering a tunnel?
Should a driver do before entering a tunnel? Make sure you get in lane early. Make sure your lights are on. It's really important to see and be seen – that sunny day won't make any difference when you're in a tunnel. Keep an eye out for speed limits, as they might change as you approach a tunnel so stay alert for signs near or on the tunnel entrance.
Why do people slow down in tunnels?
The instinctive thought might be that a tunnel, visually, suggests a constriction up ahead. The lanes are just as wide, but the visual clue is powerful. A dark hole up ahead, even when we have approached it a thousand times, is still a dark hole up ahead.