Report of Mr Fred Schnerring
65Mr Schnerring inspected the road site on 14 June 2010, nine years after the accident. While the topography remains similar, this is not a report which has been prepared by someone with the advantage of attending the scene shortly after the accident, as some times occurs with these reports.
66Mr Schnerring notes that the lane width was 2.9 metres, which would leave 0.6 metres between the lane edge and the left side of the vehicle. He concluded that this would suggest that Ms Russell, if she crossed from the kerb to the point of impact, would have travelled a total of 6.6 metres.
67Mr Schnerring calculated the speed of the plaintiff as between 1.8 to 2.4m/s for the reasons set out by him at paragraph 9.2 of his report, based on his involvement in "little athletics" for the past eight years. He took into account that the plaintiff had a previous back injury for which she was receiving physiotherapy and also that she was not dressed for the occasion in which she was not wearing a jogging suit, something he considered was a significant factor having regard to a study by Eubanks on jogging speed. As it would appear the plaintiff was attempting to get across the road to see her friend on the other side and could have been in a hurry, he considered the speed would therefore be between "hurried walking" at 1.8m/s and a 15 th percentile jogging pace of 2.4m/s. He considers the fact that she was not wearing jogging gear would cancel the "30% increase in speed" factored in by Mr Stuart-Smith.
68A considerable amount of cross-examination of Mr Schnerring related to the assumptions from "little athletics" and that she was walking at a pace between hurried walking and jogging.
69While the plaintiff suffered a back injury of some significance, none of the medical evidence point to the plaintiff as limping while she walks or otherwise having difficulties in walking. The evidence of Mr Lamplough and the defendant was that the plaintiff ran quickly and suddenly across the road. Assumptions that she was walking at a pace between hurried walking and jogging had been made without any regard to this evidence.
70The report of Mr Stuart-Smith estimated a speed of 50-60 km/h but Mr Schnerring considered that there was evidence indicating the speed could have been as low as 40 km/h. While the defendant was of the view that she was travelling at 45 km/h, the likelihood was that, on a large roadway with little traffic where the speed limit was 70 km/h, she was more likely than not to have been travelling at the speed of 60 km/h or slightly below, taking into account that she was approaching an intersection. Both Mr Stuart-Smith and Mr Schnerring considered the likelihood of her speed at impact to be around 45 km/h. This is however a difficult issue for determination given the lack of other information.
71Both Mr Schnerring and Mr Stuart-Smith agreed on a perception and reaction time of 2 seconds (Jamieson Foley report at page 18).
72Mr Schnerring's conclusions, and my findings in relation to them, are as follows:
The speed of the Jeep could not be determined from the available physical evidence. The Police material indicated the speed of the Jeep to be between about 40km/h and 50km/h.
Comment : I note that Mr Lamplough's evidence puts her speed at 60 km/h. The estimate of 45 km/h at the time of collision was the defendant's.
The pedestrian probably was on the roadway for between about 3.0 and 3.8 seconds based on the distance from the side of the road to the point of impact and her likely speed.
Comment : I have rejected this contention, as the plaintiff was described as running, not walking fast or jogging, by both Mr Lamplough and the defendant. She was wearing running shoes and comfortable clothing and I do not accept that her clothing had any impact on her speed.
At a speed of between 40km/hy and 50km/h, the Jeep probably was between about 33 metres and 53 metres from the pedestrian when the pedestrian started to cross the roadway.
Comment : The likely speed of this vehicle, in a 70 km/h zone, was the speed estimated by Mr Lamplough, namely 60 km/h, and I consider the vehicle was likely to be closer to 33 than 53 metres away from the plaintiff, given Mr Lamplough's evidence.
The pedestrian was reportedly wearing a white jumper and commenced her crossing close to a street light. The road was well lit. My inspection of the site showed that the pedestrian would be visible to the driver at the above distances.
Comment : It is not in dispute that the road was well lit. As to whether the plaintiff was wearing a white jumper, the best evidence is that of Mr Lamplough, who describes the plaintiff as wearing dark clothing, and dark blue jeans.
The driver stated that she did not see the pedestrian until the pedestrian was 2 to 3 metres away, suggesting some form of distraction or inattention.
Comment : Both experts agree that although the defendant gave this estimate, it must be incorrect. The most likely explanation for this measurement is that the plaintiff was only seen by the defendant when she was running across the road, in the same way that Mr Lamplough first saw her doing this, and that she saw her just before the collision. It is a measurement which should not be taken too literally.
At an approach speed of 40km/h to 50km/h, the driver probably was in a position to stop, or to slow to a speed of about 22km/h at impact.
Comment : If the defendant was not able to stop, then the accident was inevitable. However, if the defendant was travelling at 60 km/h prior to seeing the plaintiff, as is Mr Lamplough's estimate, then any assumption that the defendant could stop must be incorrect. In addition, if I accept Mr Stuart-Smith's faster estimate for the plaintiff's running speed, that would make the accident unavoidable at any speed over 45 km/h, the speed given by the defendant at the time of the accident.
Impact speeds of 20km/h to 25km/h are broadly considered to result in minor injuries, a lower injury outcome than that evidently sustained by Ms Russell.
Comment : This is not the subject of any medical evidence, but I am prepared to accept this contention.
73Mr Stuart-Smith's report challenged the findings of Mr Schnerring concerning the speed at which the plaintiff was crossing the road. As all the evidence pointed to the plaintiff running and not jogging, he considered that the jogging speed set out in Eubanks (J. Eubanks, Pedestrian Accident Reconstruction , Lawyers & Judges Publishing Co., 1994) to be irrelevant, noting that Vaughan & Bain (R. Vaughan & J. Bain, Acceleration and Speeds of Young Pedestrians : Phase II, SAE 2000-01-0845) explained that running speeds for young women were generally around 35% faster than their jogging speeds and that this percentage increase did not appear to be related to age.
74If the plaintiff was indeed running, as described by the defendant and Mr Lamplough, Mr Stuart-Smith considered that a range of 3 to 4m/s, with a likely running speed of 3.5m/s is the most likely running speed of the plaintiff. This would mean that she had reached the approximate point of impact, 6.6 metres into the roadway, in the 2 second interval for response time agreed to by both experts, which would make the accident inevitable. It would mean that the time at which the plaintiff left the kerb was actually within this 2 second period, or so close to the edge of it as to make collision inevitable.
75In oral evidence, Mr Stuart-Smith explained that what prevented the defendant from driving further to the right was the median strip, a raised concrete construction which continued up to the intersection. She was not able to drive to the wrong side of the road until reaching the intersection, which the car came to rest facing the oncoming traffic.
76It is not without significance that Mr Lamplough, from his position considerably further back when he first saw the plaintiff run across the road, was still only able to bring his car to a halt 5 metres from where the plaintiff laid on the roadway. His impression that an accident was inevitable is also not without significance.
77Mr Stuart-Smith says as much at paragraph 7.2 of his report where he states:
"Since the defendant reacted within a typical perception response time, a collision was unavoidable.
In order for the defendant to have been able to avoid a collision, her perception response time would need to have been faster than was the case. The difference in time would need to have been sufficient for the defendant to have commenced braking at an earlier point equivalent to the distance between the front of the vehicle at rest and the POI.
Since the vehicle's precise rest position was not measured, the precise required decrease in the defendant's perception response time cannot be determined. Nonetheless, based on estimates from the Police sketch, the defendant would have been required to have reacted approximately one second faster to have stopped before reaching the POI.
Even if the defendant had reacted 0.4 seconds earlier (the difference in time between the upper end of her possible perception response time of 1.6 to 2.4 seconds and a typical time of 2.0 seconds), the plaintiff would still have collided with the side of the car (although at a point slightly closer to its front)."
78Mr Stuart-Smith's conclusions were as follows:
- Based on conservative assumptions in relation to pedestrian running speeds, a typical driver with a typical night time perception response time would not have had sufficient time to be able to avoid a collision from any reasonable speed.
Comment : As 2 seconds is an agreed figure by both experts, this is an opinion I accept.
- The defendant's reaction in braking and attempting to swerve was a reasonable response from a road safety perspective.
Comment : Mr Barry QC submitted that the absence of evidence about skid marks is evidence that the defendant did not brake. I have indicated elsewhere that I reject his submission concerning whether or not there were skid marks. The defendant's evidence was that she braked and attempted to swerve. Both experts agreed that this was an appropriate course of conduct. Submissions by Mr Barry QC that she should have swerved to the left, or sounded the horn, are not matters about which I have received any expert evidence and I have rejected these submissions in any event.
- The plaintiff attempted to cross the road on the opposite side of the intersection from a pedestrian crossing and with her destination blocked by a barrier, which would normally prevent crossing at the location she chose.
Comment : These facts do not appear to be in dispute.
- Base on the information available, the defendant would not have had sufficient time to have avoided a collision.