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Yes, I did. And I'm telling you that they increase total CO2 emissions where they're introduced.

Lemme guess.. Young, fit, no motion disabilities, no kids, don't cook at home much?

Yes, they do. By 20%.

https://www.marketplace.org/2021/09/24/how-ride-hailing-accelerates-climate-change/

You are wrong - I stopped driving because of the endless oil war in Iraq.

Roads don’t pay for themselves, yet private citizens use them everyday for their personal vehicles. In suburbs they often park on them for free!

They do not increase carbon more than adding all the cars they replace.

Around here the only houses without parking are at regional rail stations which are situated in walkable areas. It is totally possible to not have a car in my neighborhood.

Did you even read what I wrote? Higher cab usage can lead to lower car ownership which means fewer cars manufactured. Manufacturing a car creates a lot of carbon emissions. In American cities, cabs seem to have mostly replaced transit trips rather than private vehicular trips. That's why you see the increase in carbon emissions. This is because our cities are so designed around cars that traveling by car, whether it is your own private vehicle or a cab, is much faster. Until that is changed, cars, whether private or taxi service, will continue to be the favored mode of transportation. All rideshare services did was lower the bar for traveling by car.

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I'm just going to leave this right here: https://www.marketplace.org/2021/09/24/how-ride-hailing-accelerates-climate-change/

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And yet when you do the math they increase carbon emissions in every city where they're popular - such as Seattle and San Francisco.

8 per car? I'm calling shenanigans, because you're assuming those spots are "reserved" for each user, which is frankly BS.

Except that other option has existed for decades... So I'm not sure why it's suddenly considered advantageous.

Yep, and many cities have done the analysis to show that it creates way more car emissions than private vehicles because of that behavior, but for some reason it's considered more "green" by many politicians, which is pants-on-head stupid.

Except in many cities they're trying to force the issue by building housing without parking, and all it does is fill the surrounding streets with cars parking there instead of in a building.

It doesn't actually fix anything.

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God knows. They contribute far more to carbon emissions than the equivalent privately owned vehicle, because they drive around circling all day.

Well it needs to pay for itself. A public tax on that for all tax paying citizens and tourist visitors based on length of stay is good too.

Edit: I don't know why I went around and saying it needs to pay for itself, what it needs is some revenue but definitely not to pay for itself because it pays for itself in spades just in a roundabout manner.

In dense areas, cabs travel quite short distances to their next customer, or they are simply hailed on the street itself as they drop off their customer.

Further, "efficiency" can mean a lot of things. Private automobiles spend most of their lives parked. Parking takes up a huge amount of space. "Sharing" a car through a taxi also means fewer cars need to exist, as the car is being constantly used instead of parked. This reduces the total number of cars needed in existence, which is efficient in another way.

Updating this study with more recent data including 2022 would make the results much more valuable and meaningful. I suspect that the trend would continue and private automobile use would continue to decline. I think there are multiple factors contributing to the trend, two of them being cost of fuel rising and purchase price of vehicles rising. In some parts of the country, more public mass transit has become available and rideshare services grew in popularity. Working from home certainly cuts down on private vehicle usage as well.

Because the taxi is a form of public transport, in contrast to a privately owned car or a limousine service.

Congestion makes driving not fun. If you want to have fun, take a car to a track, that's not what the public roads are for.

A lot of studies showed that reduced congestion actually increased vehicle speeds sufficiently that casualties from drivers hitting other road users and pedestrians didn't go down.