Crash tests are experiments conducted to evaluate the safety of vehicles during collisions. These tests involve using dummies to simulate human occupants and measure the impact of crashes on both the vehicle and its passengers. The results help manufacturers improve vehicle design and safety features. During a crash test, vehicles are typically driven into a barrier or another vehicle at controlled speeds. Data collected from these tests includes information on seatbelt effectiveness, airbag deployment, and structural integrity. Organizations like the National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS) conduct these tests to provide safety ratings for consumers.