A "Four-Axle" vehicle is a type of transportation that has four axles, which are the rods that connect pairs of wheels. This configuration is commonly found in larger trucks and buses, allowing for better weight distribution and stability. Four-axle vehicles can carry heavier loads compared to those with fewer axles, making them essential for commercial transport. In the context of trucking, four-axle vehicles are often used for long-haul deliveries and can navigate various terrains. They are designed to comply with specific regulations regarding weight limits, ensuring safe operation on public roads. This makes them a vital part of the logistics industry.