How to stop a wheel?

What happens when one of the most genius inventions of all times becomes uncontrollable? Inspired by a recent surge in anti-terrosim measures with concrete road blocks popping up like mushrooms in cities around the world, Soft Stop presents a gentler and subtler ways of stopping a wheel. A fork, a bag of chips, an elegantly shaped piece of wood and an egg might prove more intelligent and powerful than the ominous grey concrete pudding shapes that have invaded our public space.