Roller coaster design involves creating thrilling rides that combine speed, height, and twists. Designers use computer simulations and physics principles to ensure safety and excitement. Key elements include track layout, height, and the type of coaster, such as steel or wooden. Safety is a top priority in roller coaster design. Engineers conduct stress tests and analyze forces to prevent accidents. They also consider rider comfort, using features like over-the-shoulder restraints and smooth transitions. The goal is to provide an exhilarating experience while adhering to strict safety regulations.