For decades, the standard response to traffic congestion has been widening highways, but urban planners increasingly point to 'induced demand'—a phenomenon where new lanes quickly fill up with new drivers, failing to fix traffic. Proponents of banning expansions argue the billions spent on concrete should be aggressively redirected toward trains, buses, and walkable infrastructure to radically lower carbon emissions. Opponents argue that public transit is unfeasible in sprawling suburbs and that intentionally restricting road capacity artificially strangles economic growth and punishes daily commuters.
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