Routine design When we think of bridges, it is the dramatic and monumental long spans that come to mind first, especially the lithe suspension bridges such as the Golden Gate and the pure geometric arches such as Sydney Harbour. But the majority of bridges are not such spectacular structures. Most of them are ordinary overpasses, with spans of 30 or 40 feet, carrying roadways or rails across other thoroughfares or over small streams. You see such bridges by the dozen on any drive down the Interstate. They may be lacking in glamour, but they are more representative of a bridge builder's art. The engineering and construction of girder bridges are pretty routine these days, but the bridges are not quite standard items you order from a catalogue. The girders, whether of steel or concrete, are custom-build for each bridge, then trucked to the site and hoisted into place with a crane. The designer still has scope for variation and creativity, and it shows out on the highways: some overpasses are prettier than others. Brian Hayes, Infrastructure: A Guide to the Industrial Landscape engineeringdesignautomationroutine
The arbitrariness of the sign A key difference between verbal language and the modernist ideal of a visual “language” is the arbitrariness of a verbal sign, which has no natural, inherent relationship to the concept it represents. The sound of the word “horse”, for example, does not innately resemble the concept of a horse. Ferdinand de Saussure called this arbitrariness the fundamental feature of the verbal sign. The meaning of a sign is generated by its relationship to other signs in the language: the sign’s legibility lies in its difference from other signs. Ellen Lupton & J. Abbott Miller, The ABC's of ▲■●: The Bauhaus and Design Theory Gods of the Word soundmeaninglanguage