In the American city, the typical American city — the typical American city is not Washington, DC, or New York, or San Francisco; it’s Grand Rapids or Cedar Rapids or Memphis — in the typical American city in which most people own cars and the temptation is to drive them all the time, if you’re going to get them to walk, then you have to offer a walk that’s as good as a drive or better. What does that mean? It means you need to offer four things simultaneously: there needs to be a proper reason to walk, the walk has to be safe and feel safe, the walk has to be comfortable and the walk has to be interesting. You need to do all four of these things simultaneously, and that’s the structure of my talk today, to take you through each of those.
https://www.ted.com/talks/jeff_speck_4_ways_to_make_a_city_more_walkable?language=en#t-38888