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London Underground map: how

Contents: who | what | where | when | how | why

Of great importance is the change in function the map represents - from a map to a planner. Not only does it seem commonsense that if you're underground in a train carriage you don't need to bother about geography (Last, 1987), but that the only important information is where to start the journey, where to finish and at which stations to connect.

It appeared that Beck had an understanding of this core function and the ability to be critical other maps at the time - all of which contributed to his design.

The diagram - initially influenced by people's needs - now also influences people's perceptions. Most people know London now not by its geography but by its Underground map (Last, 1987).

As an example, a trip from Bayswater to Queensway appears simple on the map and may in fact take 10 minutes using escalators and catching trains.

Most people would be happy to make the journey not realising that the two stations are about 200 metres apart and only a minute or so walking time along the street.