A map that doesn’t point north

Found in Toyota City near the train station: a map where the north is at the bottom of the map. I think it was my first time ever to see a map where north wasn’t at the top of the map. It was very confusing trying to orient myself with this map, since I was used to seeing maps of Toyota City oriented the usual way (i.e. north facing up).

Is this random map orientation a common Japanese thing, or was this map just a one time thing? I wonder who made it and why they decided on this orientation. Any thoughts, anyone?

a map that doesn't point north

A map of Toyota City that doesn’t point north, at the train station

I’ve just had an epiphany, shortly after writing this post: what if the map orientation is chosen to correspond with the direction you are facing when you are standing in front of this map? This would also explain why maps outside stations seem to be oriented in different directions in a seemingly random fashion, as someone mentioned in the comments section.

Maybe some person in charge of maps thought it would be more convenient if the person using the map wouldn’t have to perform a mental rotation of the map in order to see where they needed to go. It is certainly possible. The Japanese are all about convenience.

So here’s another question: is this actually more convenient or less convenient than having maps always oriented with the north above?