Speed bump made of rubber
Image via Wikipedia

Technologies in transportation to keep driving speeds down on low speed roads…

They make a speed bump that’s based on retractors that open if the impact with them is small enough. These speed bumps can be configured so that if a car is going below 30km/h, the speed bump flattens; over 30km/h, the force causes the retractor to stay closed, keeping the speed bump active.

via Speed Bumps That Flatten for Slow Speeds by Jae-yun Kim & Jong-Su Lee » Yanko Design.

This seems to be an expensive alternative to asphalt or plain recycled rubber – does it make sense to invest in technologies like this?

Published by Mike Thomas

Mike Thomas P.Eng. ENV SP, is the author of UrbanWorkbench.com and Director of Engineering at the City of Revelstoke in the Interior of British Columbia, Canada.