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2. Speed bump - Wikipedia

   en.wikipedia.org/wiki/Speed_bump

   The traverse distance of a speed bump is typically less than or near to 0.3 m (1 ft); contrasting with the wider speed humps, which typically have a traverse distance of 3.0 to 4.3 m (10 to 14 ft). [5] [6] Speed bumps are used in parking lots and on small-neighborhood roads where space and cost are limited.

3. Traffic calming - Wikipedia

   en.wikipedia.org/wiki/Traffic_calming

   Physical devices include speed humps, speed cushions and speed tables, sized for the desired speed. Such measures normally slow cars to between 16 and 40 kilometres per hour (10 and 25 mph). Most devices are made of asphalt or concrete but rubber traffic calming products are emerging as an effective alternative with several advantages.

4. Speed bumps don't work: New approaches challenge long-held ...

   www.aol.com/speed-bumps-dont-approaches...

   Speed bumps have limited effectiveness: They only modestly reduce average speeds and their impact is localized. Unintended consequences exist: Speed bumps can pose safety risks, increase noise ...

5. ‘The worst in Fresno.’ Speed bumps — and city’s bad drivers ...

   www.aol.com/worst-fresno-speed-bumps-city...

   Fresno’s most famous speed bumps have admirers everywhere. Thousands of online viewers take great delight in watching some of the city’s worst drivers fail to slow down for a set of speed bumps.

6. Rumble strip - Wikipedia

   en.wikipedia.org/wiki/Rumble_strip

   The North Luzon Expressway's raised plastic transverse rumble strips approaching Balintawak Toll Barrier, Philippines. Rumble strips (also known as sleeper lines or alert strips) are a traffic calming feature to alert inattentive drivers of potential danger, by causing a tactile vibration and audible rumbling transmitted through a vehicle's wheels into its interior.

7. Botts' dots - Wikipedia

   en.wikipedia.org/wiki/Botts'_dots

   Today, there are more than 25 million Botts' dots in use in California, [6] though they have started falling out of favor. In 2017, Caltrans announced that it would stop using Botts' dots as the sole indicator of lane division, due to cost and worker safety, and in order to make roadways more compatible with self-driving cars.