collision, notwithstanding the negligence of the defendant, it cannot safely be concluded that, if he had seen the ambulance sooner and had done the best that a prudent driver could have done, he would even probably have avoided being hit by the ambulance. There- fore, even if the plaintiff was guilty of contributory negligence, the defendant did not discharge the onus of proving that such negligence was the cause of his injury. In my opinion the appeal should be dismissed upon the grounds that the defendant was guilty of negligence which caused the injury of the plaintiff that the plaintiff was not negligent alternatively, that if he was negligent, Mayo J. rightly held that his negligence was not the cause of his injury.
RICH J. The opinion I formed at the hearing of this appeal has been confirmed by further consideration of the evidence in the case and I think it a fair conclusion on the facts before the Court that the failure of the plaintiff to keep a proper lookout led to the collision. The customary rules of the road " and traffic regulations are perhaps material matters to be considered in accident cases, but they cannot be regarded as determining factors.
I adopt with respect the opinion of Lord Wright in Tidy V. Battman 1 It is unfortunate that questions which are questions of fact alone should be confused by importing into them as principles of law a course of reasoning which has no doubt properly been applied in deciding other cases on other sets of facts."
In accident cases it is impossible, and I think, improper to lay down hard and fast rules as to what conduct constitutes negligence. If, for example, a plaintiff has been guilty of a breach of a traffic regulation and can be considered therefore guilty of negligence, it would be a sad commentary on the law of negligence that he could not succeed in his claim for damages, where it was obvious that the defendant's negligence was plainly the cause of the plain- tiff's damage. I might add in passing that one cannot apply rules of traffic which are considered necessary in city areas to conditions of traffic in country districts.
I feel constrained on the evidence to accept the finding of the learned magistrate in the Local Court and accordingly, in my opinion, this appeal should succeed.
DIXON J. This appeal concerns a street accident which took place on a quiet Sunday morning in July 1946 at the intersection of two streets or roads in an Adelaide suburb. Two vehicles
1(1934) 1 K.B. 319, at p. 322.