From online mag Yanko Design comes a wacked out concept in pedestrian safety:

The Virtual Wall provides a barrier made up of plasma laser beams depicting pedestrians doing what they do best and any car that crosses that barrier suffers the consequences. Okay so maybe those lasers aren’t powerful enough to do any harm but the effect is enough to make drivers and pedestrians alike follow crosswalk rules to the tee.

Not that these should ever be necessary in a civilized urban environment, but we can almost hear Richard Brodsky spouting off about the high-falutin’ walled-off elitist pedestrian class.