Interesting. In America we don't expect anyone to know anything so there's just signs all over the tunnel such as "Turn on headlights" and of course at the end

Interesting. In America we don't expect anyone to know anything so there's just signs all over the tunnel such as "Turn on headlights" and of course at the end of the tunnel "Check headlights" in case it's not night time, and "No Parking" every 100 meters, and "No hazardous materials in tunnel" and so forth. Maybe we spend a lot more money on our signs. https://www.google.com/maps/@37.8486413,-122.2424951,3a,24.8y,91.88h,89t/data=!3m4!1e1!3m2!1sT03Cbe2j4SUkPHcgHjxXXA!2e0 https://www.google.com/maps/@37.8486413,-122.2424951,3a,24.8...