June 27


“Holographic” Speed Bumps

By Mike Spack

June 27, 2008

holographic, speed bump, speed calming, speed hump

Mike Spack, PE, PTOE

A good Friday topic –

I thought this was a hoax, but the City of Philadelphia about their fake speed bumps (traffic engineers insist on calling them speed humps, but learned that college students love to steal warning signs that say “Speed Hump Ahead”).  The city is painting 3-D looking speed bumps on their roads as a pilot study for the National Highway Traffic Safety Administration.

There are many skeptics on Fark expressing negative views about the program.  I’ll reserve judgment until the safety data is published.  Between this and the cardboard cutouts of police officers I previously blogged about, I am encouraged by the creativity of my fellow traffic engineers.


Mike Spack Bio

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Mike Spack

My mission is to help traffic engineers, transportation planners, and other transportation professionals improve our world.

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