Multi-axle bus

[1] Usually vehicle licensing authorities of different countries will set legal limits on the amount of weight that can be put on each axle.

extension to the legal limit on the length of rigid buses and coaches has led to the increased use of three axles to accommodate the heavier chassis and passenger load.

Adding axles to chassis designs is done for specific reasons such as weight or legalities, as having extra axles means extra costs for the operator in terms of tyre replacement, and to an extent, higher fuel consumption.

This steering arrangement makes it possible for the longer triple axle buses to negotiate corners with greater ease than would otherwise be the case.

Imported tri-axle buses were used initially by Megabus for high capacity low cost intercity travel in the UK.

Models are also being introduced on high capacity inter-city routes, such as by the operator Megabus.