Every time people try to say we can eliminate traffic if we just leave space in between cars, I think of this great article: <a href="http:&#x2F;&#x2F;jliszka.github.io&#x2F;2013&#x2F;10&#x2F;01&#x2F;how-traffic-actually-works.html" rel="nofollow">http:&#x2F;&#x2F;jliszka.github.io&#x2F;2013&#x2F;10&#x2F;01&#x2F;how-traffic-actually-wor...</a><p>TL;DR there is an effective maximum number of cars that can pass through a given point of roadway (about 1 car per 2 seconds per lane). No amount of space-leaving is going to chance that.