Cincinnati started installing its first permanent "speed cushions" in the city on Monday. The cushions are concrete structures that look like a larger speed bump in the road. The first permanent ...

Do speed bumps actually slow traffic? Examining the effectiveness of speed bumps in reducing average speed. While speed bumps are widely used to slow traffic, their effectiveness is often overstated.

There are around 1,000 speed humps on 162 neighborhood roads now in Nashville Traffic circles, flashing radar-feedback signs and jutting concrete curbs are other tools Nashville is using to slow down ...