The speed rule in developed aria for goods vehicles is 30 miles per hour or 48 kilometres per hour.
The speed law in single carriageway for goods vehicles is 50 miles per hour or 80 kilometres per hour .
The speed regulation in dual carriageway for goods vehicles is 60 miles per hour or 96 kilometres per hour.
The speed instruction in motorway for goods vehicles is 70 miles per hour or 112 kilometres per hour. But if the vehicle articulated or towing a trailer then 60 mile her hour.