When a vehicle's front wheels are at their maximum turn, each wheel follows a distinct circular trajectory on the ground.
The radius of the circle traced by the outer front wheel is termed the turning radius.
This turning radius is a key indicator of a vehicle's ability to execute tight turns, directly impacting its maneuverability.
A vehicle with a smaller turning radius can navigate sharper turns and is better suited for parking in confined areas.
Descriptive terms such as axial, pre-set, or vertical are not applicable to this aspect of steering geometry.
Consequently, turning radius is the accurate designation.