How does suburbanization influence regional planning and transportation planning?

• A. Growth concentrates in city core.
• B. Reduces need for transportation.
• C. Eliminates regional coordination.
• D. Growth shifts to peripheries; increases commuting; regional coordination needed for infrastructure, housing, transport.

Answer: (D)

Suburbanization shifts where growth happens, moving it from the city center outward to peripheral areas. This outward expansion usually means people live farther from their jobs, increasing travel distances and making car use more common, which raises overall commuting demand. Because suburbs spread across many municipalities and share a regional road and transit system, regional planning must align housing, land use, and infrastructure across the entire area. Without that coordinated approach, congestion grows, housing needs in outlying areas aren’t met, and the transportation network struggles to keep up. So the best choice recognizes that growth moves to the periphery, commuting rises, and regional coordination is needed to plan infrastructure, housing, and transport effectively.