Which of the following is a mandatory feature on vehicles over 4,560 kg?

For vehicles over 4,560 kg, the inclusion of an Anti-lock Braking System (ABS) is mandated due to its critical role in enhancing safety. ABS prevents the wheels from locking up during hard braking, which can lead to loss of control and increased stopping distances. This feature allows the driver to maintain steering control even under emergency braking situations, significantly reducing the risk of skidding and potential accidents.

While other features, such as Electronic Stability Control and Traction Control System, also contribute to vehicle safety and stability, they are not universally required in all jurisdictions for heavy vehicles. Cruise Control, on the other hand, is intended for convenience rather than safety and is not a requirement for heavy commercial vehicles. Therefore, the requirement for ABS emerges from safety regulations aimed at preventing collisions and ensuring better handling for larger vehicles in various driving conditions.