37 Argument on appeal directed attention to evidence about the state of the lighting at the time and place of the accident. Consideration of this subject was introduced by a submission by Mrs Turnbull's counsel that there was nothing about the footpath that put it in the category of a danger or hazard or in any similar category which of itself bespoke a breach of duty of care; and that people are expected to deal with changes in level and defects in surfaces of footpaths on which they walk. Counsel referred to Richmond Valley Council v Standing [2002] NSWCA 359 at [54] (Heydon JA). While putting this submission counsel referred to the particular circumstances of Mrs Alm; it was submitted that she did not suffer from any illness or frailty and that she had had experience tramping or bushwalking.
38 There was no particular of negligence and it was not part of Mrs Alm's case that some deficiency in the provision of lighting constituted negligence of Mrs Turnbull. The state of the lighting appears to me to be relevant at several points. The Shirt Calculus and consideration of the standard of care required of an occupier who owes a duty of care and whether there has been a breach proceed on the assumption that the persons to whom the duty of care is owed are themselves acting reasonably; whether they are acting reasonably in the relevant circumstances necessarily directs attention to the state of the lighting. The state of the lighting is also relevant to contentions that contributory negligence of Mrs Alm caused or contributed to her injury, and to the probabilities relating to whether the event occurred in the way which Mrs Alm alleged, that is that she tripped on the hole in the footpath.
39 There is no finding or reference in the judgment of the Trial Judge to the state of natural or artificial lighting or to the visibility of the hole in the circumstances. The evidence does not deal in a clear or systematic way with the sources or intensity of lighting over the footpath at the time of the event or with the visibility of the hole in the footpath in the then state of the lighting. The event occurred at about 5.45 pm on 3 July and the Court should take notice that in Dubbo in mid-winter that was about 40 minutes or so after sunset. There are some indirect references in evidence to the state of the lighting, and references to observations which were made provide some basis for inference about the visibility and the state of the lighting.
40 Mrs Alm said in evidence to the effect that at the time of the event which was 5.45 pm, it was dark, the sun had gone down, there was no natural light and that she did not recall there being any artificial light (Black 17). Mrs Alm's evidence about the event shows that she was able to see other persons walking on the footpath and make observations of what they were doing. Mr Treloar said in cross-examination to the effect that from a position at the northern end of the counter in the liquor shop the hole could be seen, quite clearly, both in the day and night time, if the observer was looking at it (Black 160). Mr Treloar from his position within the shop was able to see people moving on the footpath outside the shop, and when he left the shop one or two minutes later he was able to see and recognise Mrs Alm being assisted into a car. Photographs A1 and A2 (Blue 1 and Blue 2) and also in Exhibits 1 and 2 (Blue 156 and 157) were shown to Mr Treloar in evidence in chief (Black 148). They showed that two sets of fluorescent lights with double tubes and a fluorescent advertising sign indicating the presence of the liquor shop were fixed to the underside of the awning. Mr Treloar's evidence shows that these lights were turned on automatically by a timer in the supermarket power board from about 4.45 pm until 6 am (Black 149). On the probabilities it should be found that these lights were illuminated.
41 On this material it should be found that lighting was provided by fluorescent tubes fixed to the underside of the awning, and that there was a further source of light from the advertising sign although the purpose of that sign was not to illuminate the footpath but to draw attention to the liquor shop and to advertise liquor. It should be further inferred that lighting within shops which were trading, including the liquor shop, cast some light on the footpath outside. The lighting was sufficient to enable a person near the door of the liquor shop, that is several metres from the crack, to see the hole if the observer was looking at it; the lighting was not strong and was not specifically directed to illuminating the hole or warning of its presence. Whether a person walking on the footpath and taking ordinary care would observe the hole would depend on what other claims there were on that person's attention. A group of persons were approaching Mrs Alm in the opposite direction and she had to give attention to negotiating her way through or past them.
42 In Waverley Municipal Council v. Swain [2003] NSWCA 61 at [114] Spigelman CJ noted decisions from which it is possible to identify a change in the law in the direction of greater weight's being given to the proposition that people will take reasonable care for their own safety. This is a proposition for consideration, with other considerations, which present themselves when addressing the succession of questions which a negligence case raises, including the question of reasonable response to foresight of risk: it is not a rule of law and does not impose a clear or "bright line" limit to responsibility. Allowance must be made for inadvertence: Brodie v Singleton Shire Council; Ghantous v Hawkesbury Shire Council (2001) 206 CLR 512 581 [163] and a shopkeeper owes a duty of care even to careless customers: see David Jones Ltd v. Bates [2001] NSWCA 233 at [17] to [19] (Davies AJA) and authorities there cited.
43 In the Shirt Calculus the consideration that a duty is owed to persons who take ordinary care for their own safety is only one of the elements in the calculus; the nature and the difficulty of the measures which would overcome the risk, and the likelihood that the risk will come to realisation at some time in the course of use of the footpath by the public are also elements in the calculus; all have to be taken together. The decisions to whether Spigelman CJ referred include decisions relating to the liability of highway authorities and also to the liability of occupiers: these are different areas of the law of negligence, with different histories and different considerations affecting foreseeability of risk and also reasonable response to foresight of risk. To my mind there is no easy transition between decisions and judicial experience relating to highway authorities, with their context of public duty, public resources and legal right to use the road, and decisions and experience relating to occupier's liability, in particular for commercial and retail premises where entrants are present with the permission and, however indirectly, in the interests of an occupier who is entitled to control and (as a matter of right) to forbid their presence but allows their presence in a context which includes that their access and presence suit the occupier's interests. While an adjudication on what is reasonably required should take place in each case on the facts and circumstances of each case, and the development of standard responses and patterns of interpretation for recurring situations of fact should be received with caution, what should be regarded as reasonable care for their own safety and as acceptable inadvertence on the part of entrants to retail premises, even on the periphery as in this case, is likely overall to be less exacting of them than what is regarded as reasonable care for their own safety on the part of persons exercising their legal rights to use roads over which public authorities have powers of maintenance and repair imposed by public law. The relationships are completely different, and the calls for self-regarding vigilance are different.
44 In Mrs Alm's circumstances I am of the view that her not observing the hole should not be regarded as a failure to take ordinary care, or a failure to take reasonable care for her safety. It is not a correct view to ask, with the knowledge of hindsight, whether she would have observed the hole in the footpath if she had specifically looked for it in the footpath; there was nothing in the circumstances to direct her attention to such a possibility, and there were other claims on her attention which she had to yield to if she were to avoid colliding with other persons.
45 Counsel for Mrs Turnbull sought to rely on contributory negligence alleged against Mrs Alm. Although this defence was raised in the pleadings and at the trial, it was not referred to in express terms in the Trial Judge's judgment. While considering what were the duties and responsibilities of Mrs Turnbull and the City Council in relation to the footpath his Honour said (Red 20) "The evidence was that to Mr Treloar the hole in the footpath was obvious, he had clearly seen it and had complained about it. But that does not mean that a casual member of the public who ventures onto the area when other pedestrians are walking along would see it as clearly; Mr Treloar was working adjacent to it so had good reason to note it whereas it is unreasonable to expect a non regular member of the public to be as observant or to be aware of the hazardous nature of the hole when meeting up with other persons in the area." Although these findings were made in a different context, they are inconsistent with the contention that Mrs Alm was guilty of contributory negligence; this inconsistency may well explain the absence of any explicit reference to contributory negligence later in the judgment. In my view the finding relating to what was to be reasonably expected of a person in Mrs Alm's position is well based on the evidence and is correct, and should not be disturbed. In deciding whether Mrs Alm was guilty of contributory negligence, regard has to be paid to the whole of the claims on her attention, the presence of other pedestrians and her need to negotiate her way in the presence of other pedestrians, as well as to the state of the lighting and the otherwise highly regular state of the footpath on which she was walking. In my opinion the Court of Appeal should not find that there was contributory negligence on the part of Mrs Alm.
46 Counsel for Mrs Turnbull contended that it was not as a matter of law the responsibility of Mrs Turnbull to take care for the safety of users of the footpath. It was contended that the reality of the situation was that the footpath was a public footpath, that it was accepted as such by the City Council and that responsibility for it was assumed by the City Council. In support of this submission it was pointed out that the footpath had the ordinary appearance of a public footpath, as indeed it had, and that users of it, if they thought about the position at all, would have assumed that they were using it as an exercise of their ordinary rights to use public streets including footpaths. It was further pointed out that the City Council's officers readily accepted that the defect in the footpath was something that they should attend to when complaints to them were repeatedly made by Mr Treloar and other persons who must have made the same assumption. The submission was put repeatedly, and with some emphasis, that the substance of the matter was that the footpath was a public footpath and the repair of the hole was a responsibility of the City Council.
47 In my opinion this contention is quite wrong: the facts do not support it and it cannot be accepted. The submission is not supported by any evidence to the effect that Mrs Turnbull believed or had reason to believe that the footpath was owned by a public authority and was not owned by her. In my opinion it would not have been reasonable for her to have so believed; it should ordinarily be inferred, unless some other position is proved, that the owner of real property knows of her ownership, including where the boundaries are and how far her ownership extends. But further, the duty of Mrs Turnbull as occupier, and the standard of care to which she was subject are largely determined by the circumstances as they objectively existed, and in this case I do not see that a belief held by Mrs Turnbull that the footpath was a public footpath, or that it was the responsibility of the City Council, would have diminished or affected her duty of care even if either of those beliefs had been proved: they were not things which it was reasonable for a person in her position to believe. The lease of the liquor shop in evidence refers to the footpath as common area; the need for use of the footpath for public access to shops is obvious and is in Mrs Turnbull's interests, and the slightest attention given by Mrs Turnbull, or by anyone managing the premises on her behalf, would have revealed straight away that the footpath was within an area of land which she owned, was entitled to control and for which she had obligations in relation to her control. In any event her actual knowledge is not in my view conclusive for establishing the extent of her power, obligation and opportunity to exercise control. The relationship between a public authority owning a road and a pedestrian or other road user is different, in respects material to the Shirt Calculus, from the relationship between the occupier of a group of shops and the footpath in a common area and persons attending the shops. An occupier of land could not in my judgment discharge her duty of care to users of the footpath by leaving the safety of users to be attended to by the City Council. The duty of care owed by the City Council in relation to publicly owned footpaths may well impose a less onerous standard of care than the duty imposed on an occupier of commercial premises.
48 I do not think that the reasonable response of the occupier is much affected by the circumstance that the City Council, which actually had no duty to repair the hole, thought that it had and from time to time made repairs which repeatedly proved ineffectual. There is no evidence and there can be no finding about whether or not Mrs Turnbull in fact knew of the presence of the hole, or of the measures which were taken by the City Council, or knew that those measures were ineffectual; but whether or not she knew these things, the fact that the City Council was making repeatedly ineffectual interventions does not, in carrying out the Shirt Calculus, appear to me to have any tendency to diminish the standard of care required of or to excuse the occupier from taking measures which she otherwise should have taken.