John Rowland wrote:

The names are presumably the names of the roads which the lines are
crossing. This system was used in the Underground's early days, and is still
used on London buses, where generally the stops for north-south routes will
be named after east-west roads and vice versa.

It's a major problem with writing bus journey planners, as someone has
to go and tie all such stops together in the database so they work as
interchanges. In Milton Keynes, the names of the same stop on both
sides of the road are not even consistent. This is plainly silly.

Better is the European model of giving the same name to a cluster of
stops that represent an interchange.

Neil