when should you use parking lights on your vehicle?
So for safety in the tunnel, it makes sense to turn on lights to make yourself a little more visible. Daytime running lights are useless because they only face front, and hazards would be too distracting with all the cars flashing. Parking lights are just right. These are called daytime running lights. European legislation adopted in 2008 required dedicated daytime running lights (DRL) to be fitted to all new passenger cars and small delivery vans that go through the European whole vehicle type approval process from February 2011.