Highway design involves planning and creating roadways to ensure safe and efficient travel for vehicles. It includes considerations like road alignment, lane width, and signage. Engineers analyze traffic patterns and environmental impacts to determine the best layout for a highway. Additionally, highway design incorporates features such as bridges, tunnels, and interchanges to facilitate smooth traffic flow. Safety measures, including guardrails and lighting, are also essential components. The goal is to balance functionality with safety, making highways accessible for all users, including cars, trucks, and cyclists.