No street signs. No crosswalks. No accidents. Surprise: Making driving seem more dangerous could make it safer.

The common thread in the new approach to traffic engineering is a recognition that the way you build a road affects far more than the movement of vehicles. It determines how drivers behave on it, whether pedestrians feel safe to walk alongside it, what kinds of businesses and housing spring up along it. 'A wide road with a lot of signs is telling a story,' Monderman says. 'It's saying, go ahead, don't worry, go as fast as you want, there's no need to pay attention to your surroundings. And that's a very dangerous message.'

[...] planners have redesigned several major streets, removing traffic signals and turn lanes, narrowing the roadbed, and bringing people and cars into much closer contact. The result: slower traffic, fewer accidents, shorter trip times. "I think the future of transportation in our cities is slowing down the roads. When you try to speed things up, the system tends to fail, and then you're stuck with a design that moves traffic inefficiently and is hostile to pedestrians and human exchange."

[CLB: Fascinating article - worth the read.]

How to Build a Better Intersection: Chaos = Cooperation

1. Remove signs: The architecture of the road - not signs and signals - dictates traffic flow.
   
2. Install art: The height of the fountain indicates how congested the intersection is.
   
3. Share the spotlight: Lights illuminate not only the roadbed, but also the pedestrian areas.
   
4. Do it in the road: Cafés extend to the edge of the street, further emphasizing the idea of shared space.
   
5. See eye to eye: Right-of-way is negotiated by human interaction, rather than commonly ignored signs.
   
6. Eliminate curbs: Instead of a raised curb, sidewalks are denoted by texture and color.

[CLB: In other words, decentralised interworking principles repurposed for road and other physical transportation design systems. About time! Learn even more: Traffic Engineering]