Crash test refers to a safety evaluation conducted on vehicles or other products, such as child restraint systems and motorcycle helmets, to assess their ability to protect occupants in the event of an accident. During these tests, engineers subject the product to high-speed collisions, simulating real-world accidents, to determine its level of safety and identify any potential flaws or areas for improvement. The results of crash tests are often used by consumers as a measure of a vehicle's reliability and safety features, with manufacturers using this information to make improvements in their designs.