More on traffic:

Controlled Chaos: European Cities Do Away with Traffic Signs – International – SPIEGEL ONLINE – News
The new traffic model’s advocates believe the only way out of this vicious circle is to give drivers more liberty and encourage them to take responsibility for themselves. They demand streets like those during the Middle Ages, when horse-drawn chariots, handcarts and people scurried about in a completely unregulated fashion. The new model’s proponents envision today’s drivers and pedestrians blending into a colorful and peaceful traffic stream.

It may sound like chaos, but it’s only the lesson drawn from one of the insights of traffic psychology: Drivers will force the accelerator down ruthlessly only in situations where everything has been fully regulated. Where the situation is unclear, they’re forced to drive more carefully and cautiously.
(Via Vedana)

Very cool. Too often we hide behind the anonimity of rules, we become remote, removed… Having to look another driver/walker/rider in the eye to decide the next move would be excellent. Also see this entry.