In order to slow down traffic on some of the most notorious for speeding streets- they’ve resorted to placing optical illusions on the road so that the drivers will slow down. This of course is only an experiment… one that I see obviously flawed.
And this is why: Take your careless, speeding driver. They’re engaged in a deep conversation that goes along the lines of “OMG oh no she didn’t!… SHE DID? Well what shoes was she wearing?… HA! Those went out sooooooo two years ago- what a slut!” With this highly intellectual conversation going on, the heavy material shoe is pressing hard on the gas… the optical illusion freaks the driver out- they swerve and then hit a group of school kids waiting for their morning bus. 
Not good.
Another reason. The drivers become accustomed to the optical illusion “Oh dude, check this out (to an unsuspecting friend who has never seen a road optical illusion)” The driver floors it to freak his friend out- it turns out to really be an obstacle in the road! They hit, have a blow out and then they plow into a group of little school kids on the corner waiting for their morning bus.
THINK PEOPLE! THINK!
