On the Hong Kong MTR map, some of the interchange symbols have little lines and half-circles in them. They're a bit small to read on some maps, but if you zoom in they get a big clearer: Are these ...
Before I travelled to Hong Kong, I looked at the MTR Map, which described all the lines by colour and by name, but not by number. Generally, the signs up around the MTR did the same. However, a few ...