In some places they only allow morning deliveries, then for most of the day cars are banned. This means shops can still easily stock up while keeping the area free of traffic when people are out and about.
Another strategy is not allowing through-traffic by installing modal filters. Which means you’re only gonna drive in there if you actually need to go there. Basically the cul-de-sac idea from suburbia but without the sprawl that pulls everything apart and without restricting bikes and pedestrians to the same convoluted labyrinth.