Jun 28, 2008 · In Philadelphia the National Highway Traffic Safety Administration is testing fake speed bumps. They're optical illusions, pyramids painted on roads to look 3-D, sort of like real speed bumps. The illusionary ones cost from $60-80 each, while real speed bumps cost $1,000-1,500. The illusions do slow down traffic -- for about a month.
Apr 17, 2018 · Recently, I was contacted by the New York Times Upfront magazine, to comment on a 3D speed hump being used in Iceland. (Click to view the article). The question was, are painted virtual speed humps effective? The goal of speed humps is to help calm traffic, making it safer for pedestrians.
These Gentler Speed Bumps Rely On An Optical Illusion To Keep The Roads Safe A clever way to keep the roads safe. ... creating the illusion of a speed bump where there is none.
Nov 23, 2020 · In a more sympathetic attempt to slow down traffic road planners in Philadelphia have been experimenting in 2008 with painted illusions of speed bumps . Figure 2. Example of fake 3D speed bumps. These speed bumps are perceived as identical to real speed bumps but cost substantially less ($500 vs. $2.000), does not impede water flow and poses no ...
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