The combination of the "Metro Bilbao" logotype and the ring symbol constitute the "trademark" and form an inseparable and unique whole.
These two basic elements may be combined in several ways. However, the one presented here is what tends to be preferred for press releases and announcements.
In this case, the distance between symbol and logotype is equal to the width of the symbol itself and the logotype measures half the height of the symbol.
The trademark, designed by Otl Aicher and developed by Michael Weiss y Hans Brucklacher and which was created in combination and in accordance with the architectural philosophy of Norman Foster, comprises the symbol and the logotype.
The Metro Bilbao symbol is an abstract figure based on tunnels and wheels in movement.
It is formed by three rings of different thicknesses, which "move" inside each other. Their thickness grows in the direction of reading (left to right) and creates a sensation of movement that perfectly expresses the dynamic nature of this means of transport
For Aicher, designer and a co-operator of Norman Foster, if architecture provides order for spaces and places where there is movement, typography is a kind of bi-dimensional architecture. Typography organises surfaces, texts, images and reading movements. He designed the logotype in Rotis Semisans typeface in its semi-bold version and in lower case letters.
