A torch
Articfox? How would we ever guess where you are from
My mode of operation when moving about TV is always expect everyone else to be nuts (no offense, my thesaurus missing). Obviously they are not, but if you walk, drive a car, cart or bike around, you will meet a small percentage that make you shake your head and will be happy you were expecting the unexpected.
When walking in a tunnel, my awareness is at a peak, same as it would be when I used to walk around a tight corner on a country road 'back home' with no sidewalks. I know I have every right to be there, but to be safe I have to be aware of the drivers blind spot and expect them to not be paying attention...
In the tunnel I lean towards walking WITH traffic but always looking back for anything coming. With traffic with eyes in the back of my head if you will... Anywhere else I walk against traffic...
It obviously varies based on tunnel and situation...