The concept of the Comprehensive Plan owes much to the work of which planners?

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The idea of a comprehensive plan grew from a mix of practical planning work and influential ideas about how cities should grow. Alfred Bettman and Ladislas Segoe, through the Cincinnati Plan, helped establish the formal concept of a city-wide framework that guides land use, public investment, and growth, showing how a single plan can coordinate policy across a whole city. But the concept was broadened by other perspectives as well: Jane Jacobs highlighted the importance of street life, mixed uses, and bottom-up neighborhood realities in planning, pushing plans to reflect how people actually live and move through a city; Le Corbusier offered a systematic, zoning-focused vision of urban form that influenced how planners think about separation of uses and scale. Taken together, these varied contributions shaped how comprehensive plans are conceived and implemented, making the combined influence the best answer.