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Do transportation network companies decrease or increase congestion?

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21–30 of 81 posts

Re: Do transportation network companies decrease or increase congestion?

#21
post #12

I remember when Uber was “supposed” to be a ride sharing service where you could make extra money along your intended destination. It wasn’t touted as a taxi service.

Maybe that’s true of Lyft, but Uber started with black cars and originally had the tag line “everybody’s private driver”. Hell, the original name was UberCab. UberX cane pretty late in the game.

Re: Do transportation network companies decrease or increase congestion?

#22
post #5
post #2

Obviously. They are making it worse by exactly the number of trips that would otherwise have been done by transit, bike, walking or not at all. edit: or now scooters

Actually, you take that number, PLUS the number of empty Uber cars, PLUS the number of empty taxis that would not have been empty if there wasn't Uber...

Empty taxis drive around looking for a fare. Empty ubers park and wait.

Re: Do transportation network companies decrease or increase congestion?

#23
post #11

> Uber and Lyft have long said their services may relieve urban congestion by facilitating access to public transit This was always questionable for a place like SF or any high density city. Few people take a ride share to get to a bus or a MUNI light rail stop in SF. If you are paying for the Uber/Lyft, why would you pay again for a bus ticket, especially given the inconvenience of then waiting for the bus. You'll j…

I use it this way all the time. Bart into the city from a suburb and then if it's not in walking distance and there's no convenient bus, I take a Lyft to my destination.

So do I, but that's a different use case than people within SF using ride-sharing.

I said few journeys go from ride share to bus/Muni, excluding BART, which goes a much longer distance than bus/Muni and therefore serves different types of journeys.

And journeys originating from within SF probably still account for the majority of ride shares in the city, not journeys from outside SF.

Re: Do transportation network companies decrease or increase congestion?

#24
post #2

Obviously. They are making it worse by exactly the number of trips that would otherwise have been done by transit, bike, walking or not at all. edit: or now scooters

There's also a larger impact for cars that block traffic by stopping in the lane in front of a pickup or drop address where there isn't room to pull over.

And there's an impact from out-of-town weekend drivers that don't know where they're going and take a dumb route because of that unfamiliarity.

Re: Do transportation network companies decrease or increase congestion?

#25
post #2

Obviously. They are making it worse by exactly the number of trips that would otherwise have been done by transit, bike, walking or not at all. edit: or now scooters

Funny you say that because most of my Uber/Lyfts consist of me going to and from public transit for my intended destination.

Although it is more complicated than that, as I often take a shared ride home because Bart shuts down too early on weekends to be useful on the way back.

Additionally the math gets complicated when I have multiple people with me, as often times it's cheaper to uber/lyft somewhere to our destination than it is for all of us to individually pay for a Bart ticket.

Re: Do transportation network companies decrease or increase congestion?

#27
> The new findings, based on a computer model that simulated the speed of traffic with Uber and Lyft vehicles removed

Not sure if that's actually what's going on, but if it is, it's a ridiculous conclusion. Let me rephrase: "Japanese cars are making traffic in the USA worse, based on a computer model that simulated the speed of traffic with Japanese vehicles removed."

Re: Do transportation network companies decrease or increase congestion?

#28
post #15

It's not just the number of cars causing issues; the number of roads with ad hoc lane closures due to ride sharing pick-ups and dropoffs makes a huge difference. Many three lane streets get choked down to one lane if a delivery truck blocks a right lane and a ride share blocks the left. It's very visible every rush hour in SF.

In HK I believe that city centers have designated areas around town for taxi pickups for this reason. It seems to work quite well.

Re: Do transportation network companies decrease or increase congestion?

#29
post #5

Earlier quoted context omitted.

Actually, you take that number, PLUS the number of empty Uber cars, PLUS the number of empty taxis that would not have been empty if there wasn't Uber...

Empty taxis drive around looking for a fare. Empty ubers park and wait.

In my experience empty Ubers identify the nearest hotspot (usually from experience) and drive in that direction.

Re: Do transportation network companies decrease or increase congestion?

#30
Anything that makes it more convenient for people to get from A to B in a _car_ will, of course, create more traffic. Convenience increases usage.

Uber/Lyft may make it unnecessary for some folks to own a car, but a reduction in car ownership does not mean a reduction in car usage.

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