Computer City - 1964 by Dennis Crompton
Structural architectural idea from Archigram illustrating the future importance of information flow within urban spaces:
Computer City described the city as a network of flows—flows of traffic, goods, people, and above all information.
Strongly reminiscent of diodes and electrical substations, it was probably posited not so much as an alternative to the spawning urban forms of Plug-In City but,
floating in abstract space, as a diagram of the systems that would let Plug-In City work, their chatter of data spooling across the top.
Taken from ‘Archigram: Architecture without Architecture (2005)’ which can be found at Monoskop here