Critical Injuries From Impact of Bus Shelter? Something Does Not Make Sense.

Those responsible for keeping us safe are failing in their duties when a driver sustains critical injuries from impacting a flimsy bus shelter and no explanation is provided.

There is no structure to a bus shelter that could cause a vehicle to decelerate in the manner that it would in a 50 km/h, immovable barrier test. This is the type of compliance test that is performed by numerous governments to determine whether a vehicle design is safe enough to be allowed on our roads. So why did the driver sustain critical injuries? This does not make any sense unless something else happened. So what else happened? Why have police, news media and others who are supposed to inform the public about dangers that could kill them not explained what caused those injuries?

Do We Ignore Speed Advisory Signs? – More Results

Are we more attentive to speed advisory signs than we were 10 years ago? New results suggest the answer is no.

Three days ago Gorski Consulting posted results from videotaped observations of vehicles passing through a curve in the fall of 2009. Those results showed that the average speed of vehicles passing through the curve was 75.2 km/h, or over 15 km/h higher than the posted sign indicating an advised speed of 60 km/h. We then indicated that in the fall of 2019 the speed advisory was reduced to 50 km/h and we asked readers whether drivers were likely to reduce their speeds due to the reduction in the advised speed. Well, analysis of videotaped documentation just after the sign change in the fall of 2019 has now been completed and we have those results.

Videotaping using multiple, synchronized cameras was conducted on October 16, 2019, at the north curve of the S-curve of Clarke Road in northeastern London, Ontario. 100 observations were documented over a period of about 24 minutes. The results indicated that the average speed of these 100 vehicles was 72.8 km/h, or about 23 km/h higher than the advised speed of 50 km/h. As observed 10 years ago, not a single vehicle was observed to be travelling at or below the advised speed. However two vehicles were observed to be travelling below the old, advised speed of 60km/h and those are shown in the frame below.

This view shows a tractor-trailer travelling 54 km/h followed by a Pick-up truck travelling 57 km/h as they pass through the curve of Clarke Road on October 16, 2019 in London, Ontario. These were the only vehicles observed to be travelling below 60 km/h.

The above vehicles were the slowest ones in all the observed testing. It is likely that the Pick-up truck was travelling so slow because its motion was interfered with by the slow-moving truck. This is a common problem in evaluating what speed drivers select. Drivers cannot go any faster than the vehicle they are following so this tends to reduce the average speed. To deal with this confound Gorski Consulting made some adjustments to the data as follows:

  1. Observations were removed in those instances where the following vehicle was within 5 seconds of the lead vehicle. Thus the observation of the Pick-up truck in the above frame was removed.
  2. The following vehicle had to be travelling below 72 km/h in order to be removed from the study. In this way we kept those instances where the following vehicle was travelling at above average speed because the lead vehicle was travelling at above average speed and there is less argument that the following vehicle’s speed was interfered by the slow-moving traffic ahead.

By making this adjustment, 10 of the 70 observations of slow-moving vehicles from 10 years ago were removed from the data. Similarly in the October 16, 2019 study, 20 of the 100 observations were removed from the data. The revised results indicated that the average speed in 2009 was 76.7 km/h whereas in 2019 the average was 74.5. Given the small numbers of observations the reduced average of about 2 km/h could be attributed to small-sample variance or it might also indicate that a true, but slight, reduction in speed was obtained with the reduction in the advised speed. But what significance does that have in terms of the overall safety of the public? Clearly drivers do not follow the advice of the posted sign. They did not follow that advice ten years ago, and it is our observation that, in general, where ever and whenever, drivers do not obey posted speed limits unless they are forced to do so.

During the short time that Zygmunt Gorski was a member of the City of London Community Safety and Crime Prevention Committee in 2019, similar data was presented for discussion from testing performed within a school zone in east London. That Gorski Consulting study showed that drivers were ignoring the posted reduction in speed of 40 km/h. Instead of allowing this study to be debated the City refused its attachment to the agenda of the Committee meeting. Similar actions by the City involving the Transportation Advisory Committee led Zygmunt Gorski to resign from both committees. Actions like these demonstrate the resistance that officials have to making a realistic assessment of the dangers posed in their traffic systems.

While there is considerable propaganda about the gains made through “Vision Zero” approaches to traffic safety, the reality is that there is still resistance to change that affects public road safety. Many officials maintain the unreasonable belief that a simple change in posted speeds will result in an increase in safety on a road segment or within a safety zone. Studies by Gorski Consulting continue to demonstrate that this belief is unrealistic. Yet officials continue in their attempts to block studies, such as those performed by Gorski Consulting, that demonstrate the unreasonableness of these beliefs.

Video of Salting/Sanding Truck Dragging Car – Further Explanation

While many internet viewers of a salting/sanding truck dragging a passenger car on Hwy 401 in Toronto were horrified, there could be a simple explanation.

There could be a simple explanation why a  video showed a salting/sanding truck pushing a car into a guardrail in Toronto.

As the truck driver explained, he was attempting to steer into the right lane and did not observe the car. If the car was located at his right front wheel then the results of testing shown by Gorski Consulting in an article a few days earlier could explain why the car was not visible to the truck driver. If the truck contacted the left side of the car and behind the car’s centre-of-gravity this would cause the counter-clockwise rotation of the car such that the left-front portion of the car would come to be positioned across the right front end of the truck. Due to this positioning the truck would experience greater resistance to motion (i.e. “drag”)  at its right front wheel and this would cause the truck to be dragged toward the right and toward the guardrail. This is what was visible in the video. Thus the exaggerated motion of the truck toward the guardrail may not have been a deliberate act of the truck driver but due to the higher resistance to motion at the right front of the truck.

Many persons watching the video and observing the car being pushed toward the guardrail have made the assumption that the observed motion was carried out on purpose as some kind of road rage action. But that is likely not the case. There could be a logical explanation for the observed incident that could place little blame on the truck driver if he was incapable of detecting the car if the car entered into the truck’s blind spot. While there is insufficient information at this time to be certain what took place, police need to review all the available evidence/data and not rush to conclusions like so many have.

Salting Truck Dragging Car on Hwy 401 – What Does the Video Mean?

Before becoming outraged about this scene, the public should first understand the basic problems of visibility between car and truck drivers.

Social media outrage has clogged the internet upon the release of a short video showing a sanding truck pushing a car into a guardrail on Highway 401. Police reported they were not aware of the incident but since then they confirm that it occurred on January 13, 2020 near Bayview Ave in Toronto. Certainly police are correct in announcing that they need to obtain further information before considering what actually happened.

But isn’t it obvious what happened? Clearly the public sees 12 seconds of this monstrously large truck pushing the car as it is sideways at the truck’s front end. We already know exactly what happened. Or do we?

There are many reasons why short segments of video can be deceiving. Not much different from short segments of an event that is seen by an Incredible Eyewitness (read the writings of psychologist Elizabeth Loftus). At Gorski Consulting we often say that “Visibility is in the mind of the Beholder”.

Reports circulating in the media indicate that the driver of the salting truck was “unaware” of the car. Those wanting to lynch the driver cannot understand how the driver could not be aware of the car since the driver’s truck was pushing the car throughout the 12 seconds of video. What nonsense comes the cry, surely anyone should be able to detect that they are impacting another vehicle for at least 12 seconds. But let us examine this problem more technically.

The demonstration shown in the frame below was arranged by Gorski Consulting with respect to one of our older client files wherein a truck and car collision caused in the death of the car driver. The car and truck had been side-by-side at one point during the commencement of the incident. One can see that a black car has been placed next to the right front wheel of the truck in a manner where it was alleged that a minor contact occurred which sent the car into a counter-clockwise rotation, much like the video of the sanding truck.

In the next frame below we can see that the car is relatively close to the right front wheel of the truck.

In the next frame below we show the truck driver’s view toward the right front of his cab and toward the right side mirrors. This view is taken when the truck driver is seated in his seat and the black car is positioned in the same location as shown in the previous frames. It should be obvious that the car cannot be seen by the truck driver.

In the frame below, the photographer has stood up at the right front seat of the truck cab and the photo is taken looking down to the location of the black car which is still in the same position as it was in the previous frames. Now, a partial view of the car can be seen. But truck drivers do not drive while standing up in front of the right front seat of their cab.

This analysis was also conducted by placing the black car in front of the truck in the manner shown in the frame below. Again the car was not visible to the truck driver.

Other observations can be made from the frame shown below where two investigators are standing several metres in front of the subject truck. The visibility of those two pedestrians from the truck driver’s seat can be seen in the following frame.

As shown in the frame below, most of the pedestrians’ bodies are not visible. A typical male, standing about 5 feet 10 inches, or about 178 centimetres, is taller than a typical passenger car which is usually less than 150 centimetres tall. The bottom line is that a car positioned in the location of these pedestrians would not  be seen by a truck driver seated in his seat.

In the actual investigation there was a claim by a witness that she saw the impact between the car left side of the car and the right front of the truck tractor. This scenario was reconstructed by placing a similar car at a similar distance behind the truck as shown below.

Inside the witness vehicle a camera was placed at the witness driver’s head similar to the video camera position shown in the frame below.

The witness view could then be recreated as shown in the “zoomed in” view shown below.

The witness could not see whether an impact occurred and she later admitted so just before she was supposed to testify at trial.

Never-the-less the truck driver received a guilty verdict and was sentenced to 4 years in jail for failing to remain at the scene of the collision. This occurred because there had been a second collision between the truck and the car after the car had rotated in front the truck and substantial damage occurred to the left side of the car from that second collision. Although the existence of the first impact was disputed due to lack of physical evidence,  the existence of the second collision was beyond doubt as it was supported by the physical evidence.  There was a great misunderstanding by the court that the truck driver must have been capable of detecting that second impact as there was substantial damage to the left side of the car and the truck driver must have been able to see the car sliding sideways because the car was directly in front of the truck. It became impossible to explain to the court that the severity of a substantial impact to a car might only be registered an a 1g deceleration to a very massive truck. With heavy braking and hard steering to avoid the sliding car, including the typical vibrations that exist in a truck cab, there could be substantial doubt in the mind of the truck driver that a collision had occurred if he was incapable of seeing the car in the last seconds before impact. Additional, explainable complications occurred which caused the truck driver to leave the collision site much like the driver of the sanding truck shown in the video.

This demonstration shows a typical problem with witness information. While many independent witnesses want to be helpful, and many are, too many times their information is unreliable and sometimes completely fabricated. When a death is involved there is an urgency to want to find someone at fault who can pay for the result, not necessarily to pay for the actions that they performed.

In the scenario of the video showing the sanding truck and the car it has been reported that there were no injuries and that both vehicles left the collision site without reporting it to police. But what if the car driver died? Would the driver of the sanding truck be charged with leaving the scene of a crime? Should he then receive a four year jail sentence?

There is a rush to judgment by many who, through their personal biases, want to see a result, such as punishment for some perceived wrongdoing, without wanting to consider alternative possibilities. We would want to feel assured that such prejudice exists in only the rare few. Regrettably that is not the case. Many persons in official positions who ought to know better and upon whom we rely to achieve a just result fail to keep their prejudices in check.

An elderly defense lawyer once told us that he disagreed with capital punishment, even though some persons deserved it. He disagreed with it because in far too many instances our justice system is incapable of differentiating between the truly guilty and the truly innocent. It is a painful result when a guilty person does not pay for their crime but it is even more painful when an innocent person’s life is destroyed because we did not conduct a fair trial of their actions, not the consequences that occurred.

Do We Ignore Speed Advisory Signs?

In 2009 Gorski Consulting created this roadway grid to explore the speeds and positioning of vehicles passing through a sharp curve.

Governments spend money to post various warning signs on highways but do drivers heed these warnings? It would seem to be a waste of money if these signs were ignored. Gorski Consulting has conducted testing that reveals some interesting results.

In 2009 Gorski Consulting conducted a series of videotaping sessions on a challenging S-curve of Clarke Road in the north-east of the City of London, Ontario. The figure shown above is taken from testing conducted on October 8, 2009. This figure shows how a grid of markers was set up on the pavement in the curve so that vehicle speeds and their position within the lane of the curve could be documented. At that time a speed advisory sign had been posted advising motorists that they should proceed through the curve at a speed of 60 km/h, as shown below.

In October of 2009 a speed advisory sign warned drivers that they should proceed through the S-curve of Clarke Road at a speed of 60 km/h.

Ten years later, in late September, 2019, the speed advisory sign was changed to lower the advised speed to 50 km/h, as shown in the figure below.

Would drivers take this advised speed reduction into account and lower their speeds?

An analysis of the average speed of vehicles passing through this curve was conducted based on the videotaping from 2009. Based on 70 northbound vehicles whose speeds were documented using multiple video camera technology the average speed was 75.2 km/h. 31.4 percent of these vehicles were found to be travelling at a speed of 80 km/h or higher. Thus 31.4 percent of drivers were travelling at 20 km/h or higher than the advised speed. Out of the 70 vehicles that were documented not a single driver was observed to be travelling at a speed of 60 km/h or less.

What sense is there to install these warning signs? Transportation officials in Ontario conduct similar speed documentations to what has been done by Gorski Consulting. Thus they are fully aware of these statistics.

Further multiple video camera documentation was conducted at this site in the autumn of 2019, or ten years after the results noted above. This documentation was completed a few weeks after the lowered advised speed was posted. This video is in the process of being analysed and the results will be made available shortly. What do you think the results will show?

 

 

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