Set out in the Fourth Report on Spatial Planning, the ABC location policy applied the maxim 'the right business in the right place' to curb car traffic. A-locations with excellent public-transport access (around major stations) were reserved for labour- and visitor-intensive uses, B-locations balanced transit and road access, and car-dependent C-locations were steered toward freight and low-density uses, with parking norms tightened accordingly. Municipalities were to encode these accessibility profiles in binding land-use plans. Implementation was uneven but raised office density around rail nodes.
ABC policy was an early, influential attempt to bind land use to transport accessibility and a forerunner of transit-oriented and mobility-hub planning.
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