@uthredii@lemmy.ml
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810 Monate

Reasons for this could be:

  1. low average number of passenegers
  2. buses have old inefficient engines because of underfunding/underinvestment
bruhbeans
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510 Monate

I’m curious how/where this data comes from, seems like it would vary a lot, e.g. Seattle and SF have some electric busses using catenary wires, Chicago has diesel-electric hybrids, Bogotá has dedicated lanes so busses aren’t sitting in traffic, etc. Different cities will have different mode share, too, so some systems will have more riders. In Chicago, the train system is distributes inequitably, leading to a higher mode share for the train in wealthy areas and a higher mode share for the bus in poorer areas.

bruhbeans
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410 Monate

it’s also much easier for a city to electrify its bus fleet, vs convincing private citizens to go electric with their personal cars.

@DPUGT2@lemmy.ml
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310 Monate

No one’s designing specialty engines for buses. They just pick a model from their catalog(s) that is within specs, and most of those are seeing the same kinds of efficiency gains as other internal combustion engines.

If anything, they’re somewhat exempt from the higher emissions standards of cars, so they might actually be more efficient, passenger-mile-per-gallon. Or at least, that would be my first guess.

@oriond@lemmy.ml
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610 Monate

Bicycle travel beats all others, I was expecting yo see it on the graph.

Sr Estegosaurio
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210 Monate

It does not even polute (bc it’s based) so I think that it’s not there because that.

@ziproot@lemmy.ml
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10 Monate

The emissions by bicycle are dependent on how you get your food. EDIT: This is what I mean

More surprised about how low emissions ferries are per passenger. Especially that it beats out trains.

@pingveno@lemmy.ml
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310 Monate

Maybe trains are using inefficient engines? Eurostar performs quite admirably.

Eurostar is electric. Then again, aren’t most trains in the UK?

@ster@lemmy.ml
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210 Monate

Some are, lots aren’t.

Sr Estegosaurio
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310 Monate

Trains and metropolitan trains (metro & rail buses) are amazing transports but sadly ppl keep insisting on cars…

@leanleft@lemmy.ml
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310 Monate

does anyone have an alternative source to validate this?

mekhos
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310 Monate

No, but here is two similar charts from UK and Australia

@sexy_peach
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310 Monate

Aha, the australian one seems to have better numbers for buses

mekhos
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410 Monate

Terrain and altitude of the area studied could affect these numbers as could age and maintenance state of the fleet.

@pingveno@lemmy.ml
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310 Monate

It’s worth noting this is the grams per passenger-kilometer cost. The most efficient kilometer is the kilometer you don’t take, so a plane trip to a nearby vacation spot is going to be less efficient per-kilometer than going around the world, but much more efficient overall.

@ezmack@lemmy.ml
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210 Monate

Surprised motorcycles aren’t better. Even driving like a lunatic mine got great gas mileage

@sexy_peach
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410 Monate

There’s motorcycles out there that use as much gas as normal cars

@Belaptir@lemmy.ml
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5 Monate

deleted by creator

@pingveno@lemmy.ml
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10 Monate

But on the other other hand, having a bus available - whether it’s full or not - makes it more viable for people to live a car free lifestyle, which in turn makes them less likely to use a car, which in turn leads to higher bus use. Or so the story goes.

@sexy_peach
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310 Monate

I vaguely remember that a travel bus takes like 14-20liters per 100km or something like this which makes it extremely low per passenger

@Yujiri@lemmy.ml
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ein Monat

deleted by creator

@sexy_peach
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210 Monate

Honestly the whole thing seems pretty stupid, other sources have numbers that seem more sensible. This is the first I found ;)

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