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How did Antonio Sant’Elia’s architecture manifesto extend Futurist ideas beyond painting and poetry?

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Umberto Boccioni: Unique Forms of Continuity in Space — Futurism *Unique Forms of Continuity in Space*, bronze sculpture by Umberto Boccioni, 1913; in the Metropolitan Museum of Art, New York City.

Antonio Sant’Elia extended Futurist principles into the realm of architecture by applying the movement’s core obsession with the machine age to urban design. While Futurist painting and poetry focused on capturing the speed and dynamism of modern life through fragmented planes or linguistic innovation, Sant’Elia’s 1914 manifesto and his visionary drawings for the Città Nuova ("New City") translated these concepts into a physical, industrialized environment.12

He rejected historical architectural styles and traditional urban solutions, advocating instead for a complete break with the past. His designs depicted a highly mechanized city characterized by:2

Technological Integration: Skyscrapers and industrial structures that served as symbols of the new technological age.23
Dynamic Circulation: Multilevel traffic systems that reflected the Futurist desire for movement and restlessness.2
Functionalism: A focus on adapting form to a technological culture, prefiguring later 20th-century architectural planning.31

By conceiving the city as an affirmative, living machine, Sant’Elia moved Futurism beyond static art objects, proposing a total transformation of the human physical environment to match the speed and power of modern life.231