Double apex意思

"Double apex" is a term used in the context of road design, particularly in reference to a type of curve or bend in a road. It refers to a curve that has two inflection points, meaning the road changes direction twice within a single curve. This results in a shape that resembles the letter "S" or a series of connected "Z" shapes.

The term "apex" in the context of driving or racing refers to the point in a corner where the vehicle is at its most extreme angle relative to the direction of the curve. In a double apex turn, the driver would navigate through two such points within the same turn.

Double apex turns are often found on race tracks or challenging driving roads, and they require skillful driving to navigate safely and efficiently. They can be more challenging than single apex turns because they require the driver to manage the speed and direction of the vehicle through two distinct phases of a corner, rather than just one.