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How did transportation technology allow cities to spread farther outward?
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urban planning
Georges-EugĂšne Haussmann's modernization plan transformed many areas of Paris through the addition of wider boulevards, better lighting and water sanitation, new parks, and improved rail transportation.
Transportation technology has been a primary factor in shaping the physical form of cities, as the geographic extent of urban areas was historically limited by the speed and range of available travel modes.12
- Early Expansion: When walking or horse-riding were the primary modes of travel, cities were necessarily small. As animal-drawn vehicles and later rail systemsâincluding steam and electric trainsâwere introduced, cities began to spread outward along transit corridors. Residences and businesses clustered near these lines and stations to maximize access to transportation.2
- The Automobile Era: The widespread adoption of the automobile after World War II fundamentally transformed urban geography. Unlike rail systems that required fixed routes, the automobile provided the flexibility to travel anywhere at any time, freeing people from the need to live near transit lines. This mobility, combined with government incentives for suburban housing, facilitated the development of dispersed urban areas, often referred to as urban sprawl.34
- Infrastructure: To accommodate this growth, municipalities invested heavily in road networks, which further supported the outward expansion of cities and the development of low-density suburban communities.31