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Air pollution fell substantially as Paris restricted car traffic

washingtonpost.com

531–540 of 595 posts

Re: Air pollution fell substantially as Paris restricted car traffic

#531

Earlier quoted context omitted.

Since this thread has already established that bias is inherent in all human endeavors, why don't you try addressing the quality of the evidence itself, instead of its source? https://en.wikipedia.org/wiki/Genetic_fallacy

Because the source is important, to understand the motives. Don't you agree?

More important than the quality of the evidence itself? People you disagree with can still be right from time to time, even if they are "biased" as you suggest.

Re: Air pollution fell substantially as Paris restricted car traffic

#532

Earlier quoted context omitted.

[flagged]

No need to be like that. Yes, of fucking course in a city of millions of people there are still cars. The point here is the relative amount compared to earlier.

It did not appear to me like most people in this thread were talking about a modest reduction in vehicle traffic, or that they'd done any due diligence to estimate the actual effect of the restrictions. Seems like people are mostly shooting from the hip.

Re: Air pollution fell substantially as Paris restricted car traffic

#533

Earlier quoted context omitted.

If EVs don’t emit tailpipe emissions then 100% of their emissions will be those things. They’re also heavier and so have more tire wear. It seems not unintuitive to me that their emissions might push the boundaries of strict modern emissions standards. For taxing cars, you’re still leaving so much car infrastructure out there. It swallows the world. Six months ago for the first time ever I got a job where I could bik…

Cycling to work is nice. But if you are young, sitting all day in a warm office. Think of blue collar workers that are hungry, exhausted and also people getting older. Its fucking annoying to wait for the bus that does not show up, the stupid beeps whenever the doors open and the slow movement in general. Lucky i am at home in half an hour, laws now require you to commute to work in up to 1.5hrs if you cant afford a…

Not all folks can do it, but here in Oakland there are plenty of folks who could do it if we had better paths, but don’t because the roads are very dangerous for bikes and we have poor bike paths. This means we can get more people on bikes. Also I’m in favor of changing more than just bike paths - we could improve housing affordability so that people don’t have a 1.5 hour commute to their work. Also I have three bikes that are 15 years old. Buying a used bike uses even less resources than a used Vespa. I do have a newer ebike though. They’re really nice when you have more stuff to carry or longer distances to travel!

Re: Air pollution fell substantially as Paris restricted car traffic

#534

How much of this has to do with the policies highlighted - removing 50k parking spots, adding bike lanes and green spaces - and how much has to do with cars having better exhaust? How much less cars are on the road today vs then? The charts and title make it look like there's no cars in Paris anymore. That's not the case, at all.

I‘m currently visiting Paris for the second time in my life after 2008. I can tell you it’s much cleaner now than it has been back then. There are many electric (cargo) bikes, scooters, cars and buses. The city is much quieter and there is way less crazy traffic. There are few cars parked on the side of the street. However these parking spots were cleared for bike lanes and bike sharing parking. Biggest polluter are…

More electric cars and busses does not mean "au revoir to cars".

Re: Air pollution fell substantially as Paris restricted car traffic

#535

Earlier quoted context omitted.

Because the source is important, to understand the motives. Don't you agree?

More important than the quality of the evidence itself? People you disagree with can still be right from time to time, even if they are "biased" as you suggest.

Yes they can be right, I agree. Also I never stated I disagreed with them.

I simply questioned their independence.

Let me give you another hypothetical example:

Would you trust a report on the impacts of fracking by a pro-fracking NGO, with private funding? Even if their data looked ok on face value?

The messenger matters.

Re: Air pollution fell substantially as Paris restricted car traffic

#536

Earlier quoted context omitted.

More important than the quality of the evidence itself? People you disagree with can still be right from time to time, even if they are "biased" as you suggest.

Yes they can be right, I agree. Also I never stated I disagreed with them. I simply questioned their independence. Let me give you another hypothetical example: Would you trust a report on the impacts of fracking by a pro-fracking NGO, with private funding? Even if their data looked ok on face value? The messenger matters.

Right, right, you never said you disagreed. You’re “just asking questions”.

The messenger matters less than the data, the collection methods, and the approach to analysis. Bias can be a reason to more carefully examine a conclusion and the methods, particularly if a source has had quality issues in the past.

But simply throwing out accusations of bias in the absence of literally any other reason to doubt a pretty straightforward conclusion (removing sources of NO2 makes NO2 go down, shocking!) is not a meaningful contribution to a discussion. Every researcher is biased. Every source of funding is biased. Hell, you haven’t even shown that they’re significantly biased, the only thing you’ve pointed out is that apparently some of their grant funding came from the EU, as if that’s some sort of smoking gun.

Did their bias lead them to an invalid conclusion? Do you believe it did? Do you have a reason to believe it did? If so, state it. If not, what was the point in making your comment other than to sow doubt?

Re: Air pollution fell substantially as Paris restricted car traffic

#537

Earlier quoted context omitted.

More important than the quality of the evidence itself? People you disagree with can still be right from time to time, even if they are "biased" as you suggest.

Yes they can be right, I agree. Also I never stated I disagreed with them. I simply questioned their independence. Let me give you another hypothetical example: Would you trust a report on the impacts of fracking by a pro-fracking NGO, with private funding? Even if their data looked ok on face value? The messenger matters.

Of course I'd be skeptical. Skepticism is healthy, especially in your example. In that case, the most productive conversation to have would be examining (and either refuting or accepting) their evidence. So far you've refused to do either one here. Instead, you repeatedly engage in the genetic fallacy I linked to above, or insisting that we should consult some impossibly impartial oracle of objective truth instead.

That's your right of course. No one can force you to avoid using logical fallacies. But the longer you do that, the more it starts to look like you're avoiding or even conceding the real debate. It's up to you whether that matters to you.

Re: Air pollution fell substantially as Paris restricted car traffic

#538

Earlier quoted context omitted.

In the US, the average car weight and the average EV weight are basically identical. (4300 pounds vs 4400 pounds). When you compare similarly sized models the EV tends to be about 10% heavier, but gasoline cars tend to be larger than EV's.

In the EU an average car is 1400 kg (3000 lbs), with most vehicles probably in the 1000-1200 kg range. We don't really want the average here, but the median - and we don't want to compare to the average EV, but to the equivalent EV - comparing an F150 to, say, a model 3 isn't right. A BYD Dolphin, roughly sized like a VW Polo, is some 400kg heavier than the polo. A Polestar 2 is roughly 500 kg heavier than equivalent…

FWIW I learned semi recently that cars get heavier and heavier because it improves their “ecology” rating… the ratings consider that moving 50% more weight with only 33% more gas is better than moving 0% extra weight with 0% more gas. And so a heavier car that uses a little more gas gets a better energy rating.

It’s moronic. But that’s how it works and why cars are getting bigger and bigger.

Re: Air pollution fell substantially as Paris restricted car traffic

#539
post #495

Earlier quoted context omitted.

BYD Dolphin is size of Golf not Polo. BYD Dolphin weight 1600kg, length 4290mm. VW Polo weight 1580kg, length 3971 mm. https://www.automobiledimension.com/model/byd/dolphin https://auto.economictimes.indiatimes.com/cars/volkswagen-po...

You are comparing the max loaded weight of the polo with the unloaded weight of a dolphin. VW Polo Mk6 is 1751mm wide, 1461mm tall, 4067mm long and has an unloaded curb weight of 1105 kg. https://en.m.wikipedia.org/wiki/Volkswagen_Polo_Mk6 The BYD Dolphin 2025 60kWh is 1770mm wide, 1570mm tall, 4290mm long, and has an unloaded curb weight of 1658 kg. https://bydautomotive.com.au/brochures/BYD-DOLPHIN-2025.pdf . The V…

There is a 200kg difference between lowest trims of Dolphin and Golf, while Dolphin is slightly bigger.

2025 BYD Dolphin, length 4290mm height 1570mm, curb weight 1506kg - 1658 kg

2025 VW Golf, length 4282 mm height 1483 mm, gasoline empty weight 1307 kg - 1492 kg

https://www.volkswagen.de/de/modelle/golf.html/__ui/technisc...

Re: Air pollution fell substantially as Paris restricted car traffic

#540
post #38

Don't have to ban cars - the UK has adopted a speed limit of 20/30 mph in cities and I'm sure it helps. Surely helps with the noise and the safety

In the UK people consider "speeding" to be going 10mph or more over the limit. So 20/30mph really means 30/40mph, and in addition there are still many places with 40mph (50mph) roads going through. Speed limit signs don't work. People will drive at whatever speed feels right and this is usually way above 20mph. What works is narrowing the roads. When the carriage way is barely wider than your vehicle it magically mak…

> Speed limit signs don't work. ... What works is narrowing the roads.

Even if you have every intention to stay within limits they don't work. In the US we have these massive stroads in urban areas posted at 35 mph. When I drive (rarely) I have to constantly monitor my speed. It doesn't feel natural and also takes away from, ya know, paying attention to the road. Aside from my opinion that 35 is way too fast anyways.

At the same time I've seen people complain that roads which are clearly not narrow, are too narrow because they can't barrel down side streets at 50. But at least it forces them to drive slower.

> It essentially makes driving much more stressful, which is exactly what it should be. ... the easiest and most convenient mode of transport ...

It boggles the mind. We sit in these big cozy chairs that transport us almost anywhere with little to no effort. It's pretty incredible. Yet, the most minor of inconveniences can cause a lot of car brains to absolutely lose it. Driving feels adjacent to addiction to many Americans and if people don't get their fix they go into complete meltdowns.

I think people do find driving stressful, but for the wrong reasons. Sitting a red light? Stressful. Cyclist slowing you down? Stressful. Too many other people are using cars at the same time you are? Stressful. It's stress originating from believing you had the god given right to drive like a maniac at all times.

In every part of US cities pedestrian walkways have to cross roads. But really roads should have to cross the walkways. Instead of sidewalks dipping down into four lane highways, roads should have to go up and over sidewalks at intersections. In Amsterdam there was huge expansive brick walkways that cars can use, but they're the foreign entity. Not the pedestrians.

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