One lane bridges

I took the following picture to illustrate an interesting phenomenon here. Out in the country, they have mostly one lane bridges so in order to make it safe to cross them, they have this sign when approaching the bridge

It's a good thing Sister McGregor in the mission office explained them to me or I would have been so confused. If you're in the lane with the little red arrow, you have to yield or "give way" to anyone coming. The lane with the black arrow has the right-of-way. And remember, they drive on the left side of the road.  Pretty cool.