Excluded Evidence
27 In a number of places the primary judge referred to evidence from experts' reports that had not been admitted into evidence before him.
28 In particular:
(1) At para [16], he said that one expert Mr Woodward had considered that the traffic markings for northbound traffic were incorrect and that this led to problems resulting in the accident.
(2) At para [17], he said that Mr Woodward had expressed the view that it would be possible for a small car in the process of overtaking a truck in lane one to be concealed from the view of a driver travelling north in the process of overtaking a vehicle in lane three also travelling north.
(3) At para [27] he said that another expert Mr Hespe described the view both ways as "open and unobscured".
(4) At para [29], he said that Mr Hespe's investigations established that at the time of the accident there "was an unbroken line for northbound traffic which permitted such traffic to enter the overtaking lane which in fact also formed part of the roadway for southbound traffic"; and that at the time of his inspection, changes to the lane lines had been effected by Wollondilly Shire Council.
(5) At para [31], he said that, according to Mr Hespe, the "overtaking lane 300m ahead" sign was in the wrong place, being only 64.1 metres before the commencement of this lane.
(6) At para [79], he said this:
[79] As Mr Hespe, engineer, noted in his report, there is no suggestion of the defendant having slowed his vehicle or taken evasive action in time prior to the impact in the circumstances of the fast moving events. Mr Hespe suggested that, had he taken evasive action or reduced speed, then the accident may have been avoided.
(7) At para [112], he said this:
[112] The distance between the vehicles at the time they commenced their respective overtaking manoeuvres is, as stated earlier, a very critical fact. The only witnesses who could give evidence on that point were Mr Proud and the defendant. Their accounts, as referred to above, however, raised the question that, if Mr Proud was correct, why was it that the defendant only first noticed the presence of the plaintiff's vehicle 50 to 100 metres away? On the evidence, including the expert evidence, at a distance of 200 to 300 metres apart, the defendant had the opportunity of moving to the left lane as he said was, in fact, his usual practice.
29 Ms Adamson SC for the defendant submitted that these were material errors, and that it would appear to the Court within UCPR 51.53 that some substantial wrong or miscarriage had been occasioned. Ms Adams referred to Hughes v Kirby NSWCA 27/9/91 (where Handley JA said that "litigants are entitled to a judgment which is based solely on evidence which has been admitted in open court in the course of the relevant proceedings"); Mastronardi v State of New South Wales [2007] NSWCA 54 at [73]-[82] (where Basten JA identified the relevant miscarriage as "failure to provide a trial in which, in a significant respect, the assessment of the evidence was not flawed"); and King v Collins [2007] NSWCA 122 at [8].
30 Ms Adamson submitted that the very circumstance that the primary judge referred to this evidence indicated that he placed some reliance on it; and this was supported particularly by para [112]. She submitted that para [79] also went to a critical issue in the case.
31 In my opinion the references by the primary judge to evidence which had not been admitted would not be a ground for a new trial unless it appeared to this Court that this evidence was material to his decision. I accept that there is a low threshold for materiality, and that it will be material if there is a reasonable or realistic possibility that it did influence the result. Certainly, it is not necessary for this Court to be satisfied that it did influence the result. If there is a reasonable or realistic possibility that the evidence did influence the result, then in my opinion there has been a miscarriage in the sense discussed in Mastronardi, at least unless this Court is satisfied, on the basis of evidence which does not depend on questions of credibility appropriate for assessment by a trial judge, that the decision was correct.
32 In my opinion, there is no reasonable or realistic possibility that the evidence referred to by the primary judge did influence his decision. The question of whether the line markings were appropriate is irrelevant and was so treated by the primary judge; as was the question whether the defendant's car may have been hidden by a truck it was overtaking (Mr Proud first saw two southbound vehicles side by side). An expert's description of the view as "open and unobscured" could not add anything to the photographs in evidence or the primary judge's view of the scene. The state of line-markings was uncontroversial. The placement of the overtaking lane sign was irrelevant, particularly where, as noted by the primary judge, the defendant was very familiar with the road.
33 The first sentence of para [79] was uncontroversial. The second sentence was dependent on findings of primary facts, which were themselves dependent on considerations quite apart from the expert evidence, both as a matter of fact and in terms of the primary judge's reasons. Paragraph [112] could be regarded as suggesting reliance on expert evidence which was not identified; but where the primary judge's finding of fact was that the defendant should have seen the plaintiff when the plaintiff was 200-300 metres away in the same lane and when he was substantially past the vehicle he was overtaking, no other conclusion would be open. The resolution of the liability of the defendant depended on findings of primary facts which could not be affected by the expert evidence, and the primary judge in fact made findings of primary facts without reference to the expert evidence.
34 Accordingly, in my opinion the ground is not made out for ordering a new trial.