The metro system tends to be a source of pride for cities and their inhabitants, and I think there's room for a bit of diversity in this regard. I love the clas

The metro system tends to be a source of pride for cities and their inhabitants, and I think there's room for a bit of diversity in this regard. I love the classy humanist typography and colours of the London Underground, but they certainly wouldn't fit the dinky Glasgow Subway. And Glasgow can leverage graphic design in other interesting ways. The logo of the subway consists of a grey inner circle and an orange outer circle, representing the two lines which always run anti-clockwise and clockwise respectively. This colour scheme is used everywhere on the subway, so you always know which platform your train is at.