Crash test “dummies” are smarter than their nickname implies. Also known as Anthropomorphic Test Devices (ATDs), crash test dummies are sophisticated devices packed with sensors and have joints and weight distribution designed to mimic a real human body. ARCCA engineers use ATDs in controlled experiments to help understand how different scenarios result in different forces on the human body. ARCCA biomechanics experts use these measurements to analyze the injury potential for different scenarios. Consider a scenario where a bus driver braked to avoid a collision. Later, a passenger on the bus claims that they suffered injuries when the sudden braking caused them to fall forward into a barrier on the bus. ARCCA experts were asked to investigate this claim and used an ATD to measure the forces that would be involved in such a scenario.