What aspect does 'roadway alignment' specifically deal with?

Roadway alignment specifically pertains to the direction and curvature of the road. This includes the straightness of sections of the road and the way it bends, which are critical for ensuring that the roadway is safe and allows for adequate sight distance for drivers. Proper alignment plays a significant role in roadway safety and functionality, as it affects vehicle handling, speed, and the overall efficiency of traffic flow. By focusing on the curvature, engineers can minimize sharp turns that could lead to accidents, making it a foundational aspect of roadway design. Thus, understanding alignment is crucial in highway construction and planning.