Comerford & Ors v RTA NSW

The case of *Comerford & Ors v RTA NSW* concerned an appeal to the High Court of Australia by the plaintiffs, who had suffered injuries in a motor vehicle accident. The accident occurred when a vehicle driven by the first plaintiff crossed onto the incorrect side of the road and collided with a vehicle travelling in the opposite direction. The plaintiffs brought proceedings against the Roads and Traffic Authority of New South Wales (RTA), alleging that the RTA was negligent in its maintenance of the road, specifically concerning the road markings and the condition of the road surface. The RTA denied negligence and contended that the sole cause of the accident was the first plaintiff's negligent driving.

The High Court was required to determine whether the RTA owed a duty of care to road users in relation to the maintenance of road markings and the condition of the road surface, and if so, whether that duty had been breached. The court also had to consider whether any breach of duty by the RTA was causative of the accident, or if the accident was solely attributable to the negligence of the first plaintiff.

In their joint judgment, McHugh and Callinan JJ found that the RTA did owe a duty of care to road users to maintain the road in a safe condition, which included ensuring that road markings were adequate and the road surface was free from defects that could render it dangerous. However, their Honours concluded that the evidence did not establish that the condition of the road markings or the road surface was a cause of the accident. Instead, the court found that the accident was caused by the first plaintiff's failure to keep to his correct side of the road. The legal principle applied was that for a claim in negligence to succeed, the plaintiff must prove not only a breach of duty but also that the breach caused the damage complained of.

The appeal was dismissed.