Los Altos, CA (pop. 28,976) has a retail district that I assume they tried to keep small and dense, because it’s about five blocks across and the Safeway grocery store is built upstairs from its garage. There’s only one bus route that runs every 45 minutes and stops at 5:30 today. These are surrounded by miles of suburbs. I assume a small number of people walk to it, but a much larger number drive.