The Transport Operation Act 1995 classes excessive speed as 40kph above the regulated speed limit. Does this mean that emergency vehicles are not allowed, whilst travelling to an emergency (lights & siren) to travel above the 40kph limit? An example: An ambulance is dispatched to a serious single vehicle road traffic accident with multiple patients with serious injuries. The accident is approx 60 km away, along a State highway with the registered speed limit of 100kph. The ambulance was recorded by the communication tracking system at travelling at 155 kph. Road conditions are dry, perfect visibility, straight road, very light traffic. Is the driver of the vehicle at fault, or is the excess speed classification come into effect if there is an incident whilst driving? Many thanks.