641–650 of 662 posts
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>If those jobs are paid for by voluntary customers >If they're subsidised through taxes of people who don't want them Yes.
If they're subsidised, they're not paid for by voluntary customers.
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This seems like a fundamentally suburban perspective, and I don't mean that to be an insult, it's just what all of my small home town family members and friends think, and it overwhelmingly and ironically relates to the real traffic congestion they actually experience coupled with the hypothetical imagined congestion they pre-emptively avoid exposure to by driving instead of getting on the train. Not that there's _no…
>Tokyo is simultaneously the most populated city on earth and one of the most quiet, clean, and least congested places I've visited. Sorry, no this is culture. The same virtues exist in Japanese suburbs, nothing to do with a city.
It seems to me that it's mainly cars and a scarcity of places to be that make cities horrible and congested. More pollution, more noise, less space.
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> What? Like wind hitting the extremely aerodynamic surface of the car designed specifically not to catch the wind? Like the sound of a hundred cubic feet of metal displacing the air at 40 MPH and leaving vacuum in its wake, yeah. That they're designed to be aerodynamic is the reason they're not that loud. > That roar you hear standing a quarter mile from a busy highway is not wind, it's the tires. Now you're talking…
> Now you're talking about highways. People don't typically drive at highway speeds on city streets. That was an illustrative example. Tires typically overtakes engine noise at about 25mph. That's city street speeds. (In most car-dependent cities 40-50 is also typical city street speed.) Again, this is why tires are the majority of car noise. When you hear a car pass by on a non-highway road, you're mostly hearing ti…
This is like saying "a person typically travels at 30MPH". It doesn't mean anything. An off-road truck with knobby tires is going to have more tire noise than a sedan with snow tires which will have more than the same sedan with low rolling resistance tires. An 80s muscle car will have more engine noise than a modern 4-cylinder sedan which will have more than an electric vehicle. A gasoline vehicle under acceleration (as in stop-and-go city traffic) will have much more engine noise at a given speed. Tire noise is affected by the roadway material in addition to the vehicle. Tire noise in a 4000 pound electric car might overtake "engine noise" at a lower speed than it does for a 4000 pound V8, but that's because it's quieter, not louder.
> When you hear a car pass by on a non-highway road, you're mostly hearing tires.
Then why does it make a "whoosh" sound?
> If wind is a serious factor either you need to publish your secret findings or link me to some research I'm not finding.
I suspect the problem here is that the studies are so old. Here's the relevant sentence from the Wikipedia article called Road Noise:
> Noise of rolling tires driving on pavement is found to be the biggest contributor of highway noise and increases with higher vehicle speeds.
For this sentence it has three citations. One discusses the effects of road material on tire noise and not tire noise relative to other noise, another lumps tire noise and aerodynamic noise into the same category. The third, which is presumably where it got the premise, is from 1973, when cars commonly used bias-ply tires, which are much louder.
But let's not lose track of the thread here. The premise is that electric cars would be louder. A Model 3 is ~4000 pounds, the same as a Ford Taurus, so that's not going to be louder. Some cars are lighter -- a Honda Accord is in the same class and is ~3200 pounds, only 80% as much. But then it has a gasoline engine, which is louder than an electric motor. Does the 20% weight difference cause more noise than the gasoline engine vs. the electric motor? Somebody would need a dB meter to even answer it, and that's rather the point. Either way the difference is going to be small and people are just looking for something to complain about.
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> Now you're talking about highways. People don't typically drive at highway speeds on city streets. That was an illustrative example. Tires typically overtakes engine noise at about 25mph. That's city street speeds. (In most car-dependent cities 40-50 is also typical city street speed.) Again, this is why tires are the majority of car noise. When you hear a car pass by on a non-highway road, you're mostly hearing ti…
> Tires typically overtakes engine noise at about 25mph. This is like saying "a person typically travels at 30MPH". It doesn't mean anything. An off-road truck with knobby tires is going to have more tire noise than a sedan with snow tires which will have more than the same sedan with low rolling resistance tires. An 80s muscle car will have more engine noise than a modern 4-cylinder sedan which will have more than a…
No. It's very different. It's more like saying "a person is usually about 5'7"." It is obvious there are difference, but it's not something that varies minute by minute, and the range of differences is not stated. There's definitely not cars moving 40+ mph without making a lot of tire noise.
You're right those aren't good citations, I looked at it earlier myself and didn't like them, but I didn't go through the work of finding better ones. But seriously, can you find a single study saying wind is a dominant factor in road noise? Again, I've never heard anyone claim that.
> Then why does it make a "whoosh" sound?
Because, that's the sound it makes.
> But let's not lose track of the thread here.
This started because you claimed modern cars are not noisy except for those with modified exhaust pipes. I'm saying cars are fucking loud, all of them. Electric cars are also loud and do not solve for the problem of road noise at all. The fact that we're trying to figure out if wind or tires is the source of the noise that we both acknowledge is quite noticeable makes no difference except to support my actual point, that cars are loud.
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> Tires typically overtakes engine noise at about 25mph. This is like saying "a person typically travels at 30MPH". It doesn't mean anything. An off-road truck with knobby tires is going to have more tire noise than a sedan with snow tires which will have more than the same sedan with low rolling resistance tires. An 80s muscle car will have more engine noise than a modern 4-cylinder sedan which will have more than a…
> This is like saying "a person typically travels at 30MPH". It doesn't mean anything. No. It's very different. It's more like saying "a person is usually about 5'7"." It is obvious there are difference, but it's not something that varies minute by minute, and the range of differences is not stated. There's definitely not cars moving 40+ mph without making a lot of tire noise. You're right those aren't good citations…
Based on what? A car with low resistance tires on concrete isn't going to make a lot of tire noise even at fairly high speeds.
> But seriously, can you find a single study saying wind is a dominant factor in road noise?
The one lumping tire noise and aerodynamic noise together is obviously contemplating that aerodynamic noise is a thing.
> Because, that's the sound it makes.
Tires make a rumbly sound, when you can hear them, as for example with the types of tires that make more tire noise.
> The fact that we're trying to figure out if wind or tires is the source of the noise that we both acknowledge is quite noticeable makes no difference except to support my actual point, that cars are loud.
There is a difference between something not being absolutely perfectly silent and something emitting a loud noise. Road noise for most modern cars at city speeds isn't loud. Exhaust noise for cars with negligently or intentionally defective mufflers is loud.
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I'm going to guess Paris had more actual Frenchmen in it one or two centuries ago.
That would be a definitional matter. About 15% of Paris’s population are non-nationals. This isn’t unusual for a European capital; Dublin is 17% and Berlin is 22%, say. This would have been lower two centuries ago, though what it meant to be a national was arguably a bit different. However, what’s a ‘Frenchman’? Two centuries ago, most of France did not speak French fluently (and perhaps did not speak it at all). Eve…
How would you possibly know this as France doesn't record ethnic data for births?
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How do people deal with being sweaty at work? Do offices generally have showers?
they don't; it's just not practical. You have to be relatively fit and energetic to do it every day, have no chores like kids pickup, have extra time on your hands, the weather has to be perfect - no rain or god forbid snow. This only works for a particular segment of working people out there.
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Only part of my answer was about people coming in from afar. The other, about there being nowhere to store bikes, as well as questionable quality of the biking infrastructure is about the city itself. Edit: I'm actually saying this as someone who enjoys and actually does bike. When living in the city proper, I think there are very few routes for which the bike isn't the quickest method of transportation. For my commu…
Bike storage was never a problem for me living in London, even when I lived on a tiny canal boat. I can’t imagine Parisian’s bicycles are that different nor their homes much smaller than a boat or my 75m2 flat. Yes, I also have a cargo bike for transporting kids. The only thing stopping anyone from cycling is their anxiety and sense of car-owing identity
Wouldn't we all love to have such a big flat.
I was talking to a friend living in London, and it would indeed seem that flats tend to be bigger over there. We do have many 100+ m2 flats, don't get me wrong, it's just that most locals can't afford those and live in shoeboxes instead.
There's also the fact that the layout doesn't always lend itself to storing a bike, most flats being rather old. Even though I would technically have the surface area to store a bike, it'd have to be in an awkward place to avoid blocking the passages.
Some newer apartment buildings do have areas for storing bikes more or less securely. But I doubt that's the case for most people.
Instead, what I'm hopeful for, is that the local bike-sharing scheme will improve. And indeed, I've read a few weeks ago that they were rolling out some improved model, which they expect to be more robust.
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I think this only looks true on a local level. It's easy to see why Jimmy pulls ahead of Johnny when Jimmy's working more diligently, but they're starting from a fairly even playing field. A lot of the big cards are just dealt to you. Your parents, your skin, your religion, your school, your intelligence, your health, the neighborhood you grow up in--these things have a huge impact on what you do or don't have to ove…
Is it me or are you going into the "You're no better than me. You are just lucky to have been taught good work ethic by your parents" territory?