> A study in Berlin found that shop owners believed only about 12 percent of customers lived within 1km of a shopping street when more than 51 percent of customers lived within that walkable distance.

This seem to imply that shops don't benefit much from parking when majority of customers lives within 1km of the store, and if that's the definition of local businesses then I don't see much problem eliminating parking. Local businesses catering to local customers. Non-local businesses, ie businesses where the majority of customers isn't with that 1km, should not be located next to shopping streets, which might require a new definition of shopping streets which centralize all kind of shopping to a specific street.

This seem to somewhat match a trend that I have noticed here in Sweden. Stores catering to a larger audience seem to have started to move away from expensive city cores in the last couple of decades, with specific shopping street decreasing in importance as a result.