What are the main contents of road plane design?

The main contents of road plane design are as follows:

1. Road alignment design: including the turning point and curve radius of the road.

2. Road width design: determine the width of the road according to traffic flow, vehicle type and other factors.

3. Road intersection design: including the design of plane intersection and three-dimensional intersection, considering traffic flow, driving safety and other factors.

Road plane design needs to comprehensively consider traffic flow, driving safety and other factors to ensure smooth, safe and beautiful roads.