Despite fears that drivers may stop suddenly or swerve into actual 3D children, David Duane of the BCAA Traffic Safety Foundation told CTV news that the bump was meant to bring attention to driver-caused pedestrian injuries, and that the fake girl should not cause accidents: "It’s a static image. If a driver can’t respond to this appropriately, that person shouldn’t be driving…."
Geekologie says: "Listen: I hate to break it to you, Captain Traffic, BUT AT LEAST HALF THE PEOPLE DRIVING SHOULDN’T BE. …"
https://www.geekologie.com/2010/09/child_playing_optical_illusion.phpoldId.20100910120044142
Biking in Baltimore