What is the standard of care of the driver of a car that failed to keep a continuous lookout for approaching traffic?

The driver of the car says that he stopped the car where he should have on 11th Street; he looked for traffic both to the north and south. It is true that his view of Central Avenue to the north was limited to approximately 90 feet but seeing no traffic approaching in either direction and hearing none he was satisfied it was safe to proceed. The standard of care is that of a reasonably prudent man—Call v. Smith and Hellof 1938 CanLII 119 (SK CA), [1938] 3 WWR 539—and in my opinion, the driver of the car acted reasonably in at least entering Central Avenue, under the circumstances. In effect the learned trial judge accepted this evidence for he found the driver’s subsequent conduct negligent in failing to keep a continuous lookout for approaching traffic. As I said before, there is no appeal from this finding.