City planners say we have to rethink the way we build urban areas to make them more sustainable, healthy and just. The so-called 15-minute city is one idea. But are they viable?

The idea behind the concept is to build cities in such a way that most daily necessities and services are located within a 15-minute walk or bike ride.

The 15-minute city also offers a mobility concept: fewer cars and more space for cyclists and pedestrians, safe paths for children, people with disabilities or the elderly and places for social interaction. 

This article includes a video dealing with the topic. Similar videos on the topic can be also found from a simple search in YouTube.