My most common problem in the stations, and the cheapest and easiest one to solve is this: when I get off a train and am about to go above ground, I have no idea what direction I am facing.
The signs for which exit is which say the street corners or maybe just the streets, or maybe neither, but if I'm going to a new area, I have no idea what those streets are or which directions they go. So I would usually just have to stand above ground for a while and look at the business names, and look at the map on my phone, and look for the street signs, and eventually figure out which direction I needed to walk.
The solution is simple: paint a compass on the floor near the exits.
The signs for which exit is which say the street corners or maybe just the streets, or maybe neither, but if I'm going to a new area, I have no idea what those streets are or which directions they go. So I would usually just have to stand above ground for a while and look at the business names, and look at the map on my phone, and look for the street signs, and eventually figure out which direction I needed to walk.
The solution is simple: paint a compass on the floor near the exits.