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Effects of large vehicles on pedestrian and pedal-cyclist injury severity

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191–200 of 278 posts

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#192

> Findings suggest larger vehicles are involved in pedestrian and pedalcyclist crashes with more severe injuries that result in higher hospital charges. I've commuted 10s of thousands of miles by bike the last 30 years, mostly in an urban environment. This doesn't surprise me. I can't read the whole article, and the excerpt doesn't offer any data or speculation about the causes of this. So, with some experience, I'll…

Agree with your speculation. Here's another one. Even WHEN THE DRIVER sees you, some subconsciously ignore you. I'v had people look straight at me, keep driving then looking shocked when they finally realise and hit the brakes. I can only surmise they perceive traffic in terms of threats. When you're in a bigger car, threats are reduced.

That sounds like consciously ignoring you and is seriously psychotic behavior!

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#193
post #26
post #19

Earlier quoted context omitted.

There are three trends: bigger mass, larger sizes and taller vehicles. Which one of the above is the most consequential? I'm guessing height. at 2500 or 5000 lbs, neither is going to be pleasant when you bang in to it. size maybe there is more surface area to get hit by, but that's unlikely to be significant. mass does influence stopping distance though, so that could be, but at the same time we now have large disc b…

E=mV^2/2 60 km/h car will kill you either way, 1 km/h car won't kill you either way, but somewhere in between there's a velocity range where a SUV will kill you and a compact car won't - simply because of the mass difference. I'd argue it's the velocity range in which a lot of collisions happen (especially in city traffic).

It is not just the mass, the design is critical as well. Check pedestrian impact tests, on regular cars pedestrians can roll over while with tall cars or SUVs they are simply splashed against it.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#194
post #192

Earlier quoted context omitted.

Agree with your speculation. Here's another one. Even WHEN THE DRIVER sees you, some subconsciously ignore you. I'v had people look straight at me, keep driving then looking shocked when they finally realise and hit the brakes. I can only surmise they perceive traffic in terms of threats. When you're in a bigger car, threats are reduced.

That sounds like consciously ignoring you and is seriously psychotic behavior!

I have had similar experiences cycling a number of times. It's really more of a mental block. They aren't expecting to see a cyclist so they don't see one.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#195
post #14

Exactly on topic: a philosophy paper " Vehicles and Crashes: Why is this Moral Issue Overlooked? " by Douglas Husak. Author argues that because of the high crash incompatibility with other vehicles (and pedestrians), SUV driving is immoral - imposing an oversized amount of harm to others with no proportional safety for self. https://www.jstor.org/stable/23562447

Vans are nightmare stuff for motorcyclists. Hitting a compact car from most angles means rolling over it. Hitting a van from any angle is instant SPLAT - all potential energy gets instantly converted into damage. We don't have SUVs here (Eastern Europe), but I think they're a closer to vans than to compacts.

Sorry dude I've got 4 kids, there isn't a sedan out there that I can fit 4 car seats in, and still have room for a driver and passenger.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#196

Earlier quoted context omitted.

The line in question: "By race, Blacks are also found to be overrepresented as pedestrian and pedalcyclist crash victims."

I'm trying to figure out if this is due to pedestrian density in urban areas, hate crimes, insurance/injury fraud, less reflected light at night, ...

It's probably mostly a poverty issue. Poor people have more difficulty affording a car. This forces them to walk and bike, even in areas where the infrastructure makes it unsafe to do so (areas like this are ubiquitous in US cities).

Black people in the US, due to a wide variety of systemic issues, are more likely to be poor. Which means that issues of poverty are more likely to affect black people.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#197
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Earlier quoted context omitted.

Pedestrian visibility is also compromised. My SO is not a tall person. We've tested - she's quite invisible standing in front of these trucks and SUVs, because their front hood is so high and square. A small child would be impossible to see even some meters away. Worse if the driver of the vehicle is not tall.

I once had a Toyota land cruiser start climbing onto the hood of my Hyundai accent because the driver couldn’t see me over the hood of his engine as he driving up out of a parking garage.

As a driver of an oversized vehicle I am always paranoid about driving in the city and almost never do it in my truck. If you walk in front of my truck I literally cannot see you. The tires are almost 4 ft tall and it is easily possible to simple drive over smaller cars. I keep this diesel monstrosity where it belongs, out in nature off roading and buying groceries in my local suburb.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#198
post #28

Earlier quoted context omitted.

The big problem -- pun intended -- is that vehicles are de facto required by law to be huge. Imagine if we had cars that were built like cars from the 80s -- smaller, lightweight, tons of visibility, minimal equipment -- but with modern engine technology and a few of the electronics that don't add much weight, but add a ton of functionality (like 360-degree cameras). I'll take the road noise, less interior comfort, a…

Uhm not seeing your point? Cars are made to keep who’s inside alive, and you can’t do that with paper thin walls that made the original mini. No law makes an SUV a requirement though. That’s just people getting greedy while the roads are getting larger allowing them to see no difference driving large vehicles.

I live in an area that is sparsely populated and has hard winters, oftentimes plowing isn't going to happen soon if it happens on the day of a snow storm. I also have several children that I need to transport to various places.

I have yet to find a mini-van that is able to handle appropriately in the snow and conditions I am likely to face, and a smaller vehicle can't carry my family.

Just because you can't think of a reason doesn't mean someone who does something you disagree with is morally deficient.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#199
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post #29

Earlier quoted context omitted.

SUV problem is mostly a grill size problem. They are designed to be aggressive and kill, you could drop them lower increase visibility and improve pedestrian impact like they do in Europe

They're designed to kill?

Yeah it’s a design trade off. Buyers prefer the aggressive look of large grills but that shape decreases visibility and is more likely to kill pedestrians on impact. That trade off is pretty well known. Without government regulations there is little value to car manufacturers to design vehicles that don’t kill pedestrians on impact so they choose designs optimized to sell that also kill more.

There was a recent case where a vehicle designed for the European market actually had the pedestrians protection hood design stripped off and replaced with more aggressive and deadly styling for the US market.

Re: Effects of large vehicles on pedestrian and pedal-cyclist injury severity

#200
post #169

As an American, we need to rethink how the cities are designed. Way too much emphasis on car centric design. An emphasis on car centric transportation means fed government and people want cars to be safer. Larger A-pillars which decrease line of sight. Larger vehicles give people a higher sense of security and safety. These 2 points make it very safe for the driver and occupants but disregard any safety for pedestria…

We have rethought it extensively. There are proposals in every major city and probably nearly every neighborhood for improved street designs. But enough of those who drive through those neighborhoods oppose those improvements that they rarely happen.

It’s easy for a driver to assign themself responsibility to “drive safely” - and hard to admit that we take constant risks that sometimes result in harm. Accepting that we need new street designs is taken as a personal affront by many drivers.

I think the only way to solve this is to take street design decisions (and funding for safety improvements) out of the hands of governments - there’s no level of local gov that is immune from the backlash. But how do we do that without some horrible other outcomes?

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