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2. Bumper (car) - Wikipedia

   en.wikipedia.org/wiki/Bumper_(car)

   NHTSA amended the bumper standard in May 1982, halving the front and rear crash test speeds for 1983 and newer car bumpers from 5 miles per hour (8 km/h) to 2.5 miles per hour (4 km/h), and the corner crash test speeds from 3 miles per hour (5 km/h) to 1.5 miles per hour (2 km/h). [51]

3. 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 fuzzy vibration and audible rumbling transmitted through the wheels into the vehicle interior.

4. Vehicle rollover - Wikipedia

   en.wikipedia.org/wiki/Vehicle_rollover

   Stunt drivers deliberately use ramps to launch a rollover. Vehicles with a high center of gravity are easily upset or "rolled." Short of a rollover, stunt drivers may also drive the car on two wheels for some time, but this requires precise planning and expert driver control. Specialized safety equipment is often utilized. [citation needed]

5. Speed bump - Wikipedia

   en.wikipedia.org/wiki/Speed_bump

   Speed bump and warning signs A road sign "Humps for 1 mile" in Hertfordshire, England. Speed bumps (also called traffic thresholds, speed breakers or sleeping policemen) are a class of traffic calming devices that use vertical deflection to slow motor-vehicle traffic in order to improve safety conditions.

6. Automotive safety - Wikipedia

   en.wikipedia.org/wiki/Automotive_safety

   The terms "active" and "passive" are simple but important terms in the world of automotive safety. "Active safety" is used to refer to technology assisting in the prevention of a crash and "passive safety" to components of the vehicle (primarily airbags, seatbelts and the physical structure of the vehicle) that help to protect occupants during a crash.

7. Federal Motor Vehicle Safety Standards - Wikipedia

   en.wikipedia.org/wiki/Federal_Motor_Vehicle...

   Canada has a system of analogous rules called the Canada Motor Vehicle Safety Standards (CMVSS), which overlap substantially but not completely in content and structure with the FMVSS. The FMVSS/CMVSS requirements differ significantly from the international UN requirements, so private import of foreign vehicles not originally manufactured to ...