Kääntösädettä

Kääntösädettä refers to the turning radius of a vehicle. It is the smallest circular path that a vehicle can turn. This is a crucial measurement for vehicle maneuverability, especially in tight spaces like parking lots or narrow streets. The turning radius is influenced by several factors including the wheelbase of the vehicle, the steering angle of the front wheels, and the track width.

There are two commonly used measures for turning radius: the curb-to-curb turning radius and the wall-to-wall turning radius. The curb-to-curb turning radius is the diameter of the circle traced by the outermost point of the vehicle when turning with the wheels at their maximum lock angle. The wall-to-wall turning radius accounts for the space required for the front and rear overhangs of the vehicle during the turn, making it a more practical measure for real-world scenarios.

A smaller turning radius indicates greater agility and ease of maneuverability. This is particularly important for large vehicles like trucks and buses, where a larger turning radius can make navigation challenging. Conversely, smaller vehicles often have a smaller turning radius, making them easier to park and handle in urban environments. The turning radius is a key specification considered by manufacturers and is often listed in vehicle specifications. It directly impacts the vehicle's ability to navigate obstacles and perform tight turns without needing to reverse multiple times.