It's the principle for building environment. At some point everyone is Pedestrian, so env should be built to make walking as safe and nice as possible, includin

It's the principle for building environment. At some point everyone is Pedestrian, so env should be built to make walking as safe and nice as possible, including getting most of the things you may need with a short walk and safety. Next is bike for things that are a little more far away or for last mile trips. Next is public transport for long distance, next is cars for ppl that really need them or a willing to pay more. It's a priority piramide for creating good human centtic city design