Wheel arrangements refer to the configuration of wheels on a vehicle, particularly in the context of trains. These arrangements are often denoted using a notation system that describes the number of wheels on each axle. For example, a 2-8-2 arrangement indicates two wheels on the front axle, eight on the middle axle, and two on the rear axle. In rail transport, different wheel arrangements can affect a train's stability, speed, and ability to navigate curves. Common arrangements include 4-4-0, 2-6-2, and 0-8-0, each designed for specific operational needs and track conditions.