Donald Shoup, distinguished research professor of urban planning, shared his expertise on parking pitfalls and reforms in a wide-ranging conversation on the American Planning Association’s “People Behind the Plans” podcast. Shoup, author of “The High Cost of Free Parking” and editor of the recent “Parking and the City,” spoke of the long history of inequitable policies and made a case for “parking benefit districts,” which reinvest parking revenues directly into neighborhood improvements. Government-mandated minimum parking requirements for businesses are “a disease masquerading as a cure,” one that “poisons our cities with too much parking,” he said. Such policies have led to vast but vacant Home Depot lots and a six-story underground structure at Disney Hall that discourages Angelenos from stepping outside to create a vibrant urban landscape. Shoup concluded, “If you want more housing and less traffic, you shouldn’t limit the amount of housing at every site and require ample parking everywhere.”