Use this tag for question about cars, trucks and other road transport.
Road vehicle with four wheels and an engine intended to be a means of transport.
Questions tagged [road-vehicles]
190 questions
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Do the majority of people go 80 mph on the motorway?
I live in the UK, and my dad has told me "It is not possible to drive at 70 mph on the motorway. Everyone goes at 80 mph and [the police] don't care."
When he says nobody he means the majority of people drive at 80 mph.
The speed limit for…
Thomas O
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Does a prototype car that runs on water exist?
In a conversation with a friend recently, she was telling me about a new car that "some Japanese company" had developed, apparently a working prototype that's about to be put into production. It has a rather astounding fuel source:…
Mason Wheeler
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Can an on-the-fly water electrolyzer linked to the air intake improve fuel efficiency of a gasoline engine?
This article initially seems to investigate so-called water powered cars. The final few paragraphs of the article however branches off into discussion about a system where (as I understand it):
A car's electrical system (powered by its alternator)…
Highly Irregular
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Do trains/boats/planes involved in accidents have a lower occupancy?
This Article from the daily mail makes some interesting (and rather ludicrous) claims, but one stuck out to me specifically.
The article argues that higher cancellation rates/lower occupancy on transportation involved in accidents could be evidence…
Kwuz
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Are pets as bad for environment as cars?
In this article referring to a book the authors claim:
Taking the dog for a walk to the store would seem like a more
environmentally-friendly option than piling into the SUV.
Not so, say two New Zealand scientists whose new book claims pets have
…
sashkello
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10
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Does a turbo-charged engine require a "cooling down" period?
Some people are saying that after having driven a car with a turbo-charged engine, you need to let the engine run for several seconds (or even minutes) before switching off the engine. But nobody is able to explain why, which makes me wonder if it's…
BaGi
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9
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Is it illegal to stop a car for a pedestrian crossing in China?
Today while preparing for one of my classes, this time on law, I found the snippet on a great many websites saying that in China:
Drivers of power-driven vehicles are forbidden to stop at pedestrian crossings or they risk a 5RMB…
Rincewind42
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Did a Blackberry service outage reduce traffic accident rates in Dubai and Abu Dhabi?
A report from The National has been widely cited on the Internet recently:
A dramatic fall in traffic accidents this week has been directly linked to the three-day disruption in BlackBerry services.
In Dubai, traffic accidents fell 20 per cent from…
Oddthinking
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9
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Seat belts in cars save the lives of occupants in cars, but do they lead to lower deaths for all road users?
Reading and contributing to the skeptics debate about the effects of cycle helmets reminded me of the much more significant debate on seat belts in cars.
Most countries seem to have accepted that they should be compulsory. The UK government claimed…
matt_black
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9
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Can riding a motorcycle without earplugs cause hearing damage?
I've heard claims before that when riding a motorcycle, wind noise (especially on the highway) is loud enough that it will cause eventual hearing loss.
Personally, I ride a motorcycle, and I usually wear earplugs on longer rides, but I have no…
Zack Elan
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Are electric cars better for the environment than internal-combustion cars?
Possible Duplicate:
Does a car with a hybrid engine and Lithium batteries pollute more than a car with conventional technology?
We hear a lot about electric cars being the future. But we also heard a lot about corn ethanol being the future. Corn…
richard
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9
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Do cars drop 7% in value every month?
In their email communication car-buying organization wijkopenautos.nl (wkda.de) claims cars drop 7% in value each month. Their exact claim is:
Let op: een auto verliest iedere maand ongeveer 7% aan waarde, ongeacht hoe vaak er mee wordt gereden.…
Belle
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9
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Are seat straps in child restraints less effective when they are twisted?
My wife and I have seen many parents in a rush buckle their kids in a car seat despite one of the straps being twisted (I've even done it myself a few times- don't tell my wife- because I had a hard time believing it was that big of a deal.)
I did…
Eliyahu
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9
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Does left-foot braking result in faster driving?
Does braking using your left foot (like Formula 1 drivers would) make you a better/faster driver?
And why?
Is it only better/faster if you don't have a clutch? So then it would not be impressive at all if you use your left foot to brake for mundane…
Adam Lynch
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9
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Did DUI fatalities increase or decrease due to legalization of marijuana?
I've seen conflicting articles claiming that DUI fatalities either increased or decreased after states legalized marijuana. Here are two samples, though there are many articles out there;
"Since marijuana legalization, highway fatalities in…
dsollen
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