Road designs refer to the planning and layout of roadways to ensure safe and efficient transportation. This includes the arrangement of lanes, intersections, and signage, as well as considerations for pedestrians and cyclists. Effective road design aims to minimize traffic congestion and accidents while accommodating various types of vehicles. Different types of road designs include grid systems, curvilinear layouts, and radial designs. Each design has its advantages and is chosen based on factors like geography, population density, and intended use. Proper road design also incorporates elements like traffic signals and crosswalks to enhance safety for all road users.