This is an appeal by defendant from a judgment entered against him for $1,401.90, in an action brought by plaintiff to recover damages for personal injuries caused by a collision between an automobile driven by the defendant and another automobile in which the plaintiff was riding as the guest of one H. C. Riddle.

The facts of the case, as shown by the findings, which are supported by the evidence, are as follows: Plaintiff was riding as a guest of Riddle, who was driving his automobile in a southerly direction on the westerly side of Chester Avenue, in the city of Bakersfield. The defendant was driving in a northerly direction on the same avenue, and both were approaching its intersection with Twenty-fourth Street. On arriving at this point the defendant undertook to make a left turn in order to proceed westerly on Twenty-fourth Street. Before turning he extended his left hand in a horizontal direction outwardly from the left side of his car, thereby giving the proper signal of his intention to make the change of course mentioned. He thereupon ran beyond the center of the intersection and, proceeding at a slow rate of speed, completed the turn. His automobile had just cleared the car tracks on Chester Avenue when it collided with that of the plaintiff. The defendant, as he testified, first observed the car driven by Riddle approaching from the north as he was “just ready to make the left hand turn.” At this time Riddle’s machine was about 100 feet north of the intersection, and was approaching said intersection at an excessive and unlawful rate of speed, exceeding thirty miles per hour. The defendant did not again observe the oncoming automobile until it was in such a' position that a collision was inevitable.

The trial court, in addition to a finding substantially to the foregoing effect, found that “the said defendant so carelessly and negligently operated and drove his said automobile that he caused the same to divert from the easterly side of said avenue to the westerly side thereof and to enter the path of the automobile being driven by the said Riddle in such manner as to collide with great force and violence against the left side of the automobile being driven by the said Riddle, and thereby caused the same to overturn.” The court further found that defendant negligently attempted to make said turn “without first seeing that there was sufficient space for such movement to be made in safety,” in this, that when about to commence making the turn, the defendant observed the approach of the Riddle car, which at that moment was a distance of approximately 100 feet north of the northerly boundary of Twenty-fourth Street, “but that the said defendant failed at said time to observe the speed at which the said car being driven by Riddle was approaching, and further failed to observe the movement of the said ear being driven by Riddle, and did not again see said ear until his own car was about to collide against the left side of the automobile so being driven by the said Riddle. ’ ’

The principal contention of defendant upon this appeal is that the evidence is not sufficient to establish the fact of negligence upon his part, or to prove that such negligence was the proximate cause of plaintiff’s injuries. It was conceded at the trial that the negligence of Riddle in driving at an excessive rate of speed was not imputable to the plaintiff, so that if defendant’s negligence was the proximate cause of the accident, plaintiff could recover notwithstanding the contributory negligence of ■ Riddle.

As we see it, this case falls within the general rule that negligence is a question of fact for the trial court or jury. Here it was peculiarly a question for the court trying the cause to decide as a matter of fact whether or not the defendant was negligent in executing this left turn in the manner in which he did. The defendant seeks to take the ease out of the operation of this rule, and would, in effect, have us decide as a matter of law that one having reached the intersection and having given the signal indicating his intention to turn has then relieved himself of all further care in the matter. But it is obvious that such is not the law. A motorist must at all times use due care to avoid colliding with another; he must be ever alert and watchful, so as not to place himself in danger, and while he may assume that others will exercise due care, he cannot for that reason omit any of the care which the law demands of him. Assuming, therefore, that the defendant had the right of way, he was required to proceed across the intersection in a careful and prudent manner, ever watchful of the direction in which danger was most likely to be apprehended. He could not close his eyes so far as south-bound traffic on Chester Avenue was concerned. To the contrary, haying observed Riddle’s car approaching at an exceedingly fast rate of speed for that vicinity, the defendant was no longer entitled to rely upon the presumption that the driver of this machine would comply with the rules of the road, and he was bound to take such reasonable measures as he could, under the circumstances, to prevent the injury. It was, therefore, a question for the trial court to determine upon all the evidence and the reasonable deductions therefrom whether the defendant, after having seen the approaching machine, continued to exercise the care and prudence which a reasonable man would have exercised under the circumstances. And as we cannot say that the trial court reached an unreasonable conclusion, we are bound by its finding of the ultimate fact which determined the proximate cause of plaintiff’s injury.

Furthermore, there is nothing in the provisions of the Motor Vehicle Act which specifically gave the defendant the right of way under the circumstances of this case. Subdivision (n) of section 20 of this act provides that, “The person in charge of any vehicle in or upon any public highway, before turning, stopping, or changing the course of such vehicle, and before turning such vehicle when starting the same, shall see first that there is sufficient space for such movement to be made in safety, and if the movement or operation of other vehicles may reasonably be affected by such turning, stopping or changing of course, shall give plainly visible signal to the persons operating, driving, or in charge of such vehicles of his intention so to turn, stop, or change his course. ...” (Stats. 1919, pp. 191, 216.) And in subdivision (f) of the same section it provided that, “Excepting where controlled by such traffic ordinances or regulations as are permitted under this act the operator of a vehicle shall yield the right of way at the intersection of their paths to a vehicle approaching from the right unless such vehicle approaching from the right is further from the point of intersection of their paths than such first named vehicle.” Although a machine first reaching the intersection may have the right of way, it does not follow that one who changes his course at the intersection of a street is entitled to the full protection of this rule, for common sense tells us that he is bound to exercise great care to avoid colliding with machines that are on the street and across whose path he must travel. (Clark v. Fotheringham, 100 Wash. 12 [ 170 Pac. 323 ].) It seems to us that this was what the legislature had in mind when it provided that a vehicle, before starting to turn, “shall ‘see first that there is sufficient space for such movement to be made in safety,” so that the practical effect of this provision is to east upon motorists intending to turn the duty of exercising greater care than is ordinarily required of them.

In accordance with the above expressed views, we are of the opinion that the judgment of the trial court was proper, and should be, and is hereby, affirmed.

Lawlor, J., Richards, J., pro tem., Seawell, J., Myers, J., and Wilbur, C. J., concurred.