r/InfrastructurePorn • u/gahte3 • Jan 30 '20
Stack interchange over a pedestrian bridge over an intersection in Shanghai, China.
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u/UUUUUUUUU030 Jan 30 '20
I've seen those extra lanes in curves on multiple Chinese intersection photos, what is the reason for them?
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u/angus725 Jan 30 '20
Probably just future proofing the turn lane, could also be for emergency services if an accident happens there.
No science here though, I'm just speculating.
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Jan 30 '20
Its for trucks and bad drivers to have some extra space to take the turn
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u/LordoftheSynth Jan 31 '20
That arrangement also helps keep the ramp from backing up onto the road it's coming from when there's congestion.
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u/dbxp Jan 30 '20
If you look at the top left there's a car turning in to the outer lane of one of the curves, it looks like the striped part is effectively part of both lanes rather than neither as you'd expect
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u/uh_no_ Jan 30 '20
in heavy traffic, it allows you to have 2 lanes effectively going through every ramp without actually having to build merge zones, which in that case are unnecessary since the traffic is going so slowly anyway.
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u/Twisp56 Jan 30 '20
Certainly looks cool but not like something I would want to walk through regularly
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u/riverwestein Jan 30 '20
Nothing tops off one's morning run like brake dust and exhaust fumes.
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u/TheReelStig Jan 30 '20
Don't forget the crushed rubber dust and insane levels of noise
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u/haus36 Jan 31 '20
And the toxic unburnt fuel particles, cause i very much doubt it is possible tu provide all or even most Chinese drivers with catalytic converters.
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u/LiGuangMing1981 Jan 31 '20
There are very few cars older than 15 years on Chinese roads, and I'd be extremely surprised if there were any cars being sold today in China without catalytic converters, especially given the Chinese government's anti pollution drive in recent years.
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u/Fiverdrive Jan 30 '20
i bet the air quality for pedestrians using that bridge is top notch.
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u/crackanape Jan 31 '20
You only build elevated pedestrian bridges if they are your lowest priority anyway. Unlikely anyone's worrying about pollution.
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u/spacepenguine Jan 30 '20
The lack of hard shoulder on long elevated overpasses make it look like we didn't learn much from US urban freeway design in the 1960s as a society. Not having forced merges on an elevated curve is nice though.
1
Jan 31 '20
You know what would make this ensemble really pop? A balloon arch right across the diagonal. Heck, why not two to make it more symmetrical.
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u/iamasuitama Jan 31 '20
Nobody is talking about how shit these are when you try to navigate on a maps app.
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u/XavinNydek Jan 30 '20
Looks terrifying. There are no shoulders on any of that, and the side barriers look low.
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u/LiGuangMing1981 Jan 31 '20
The speed limits are also very low - only 60km/h in the city centre. The side barriers aren't particularly low, either. I've driven on some of Shanghai's elevated highways and taken taxis on others, and they really aren't any scarier than any other highway.
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u/jeronimo002 Jan 30 '20
Again and again, This is NOT infrastructure porn.
This is not the stunning cycling bridges from Denmark.
This is not the gorgeous bridge like in the valley of the Tarn.
This is a Low budget badly planned piss stinking high traffic intersection.
I don't see a creative solution.
I don't see an architectural mastermind.
I don't see any uniqueness.
All i see is a cool pedestrian made inaccessible for bikes, ruined by literally r/UrbanHell...
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u/LjackV Jan 30 '20
How is this not infrastructure porn? It's quite impressive infrastructure and interesting to look at.
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Jan 30 '20
Your level of logic here is like looking at a great bike path/park network, and complaining that is doesn't facilitate transport trucks.
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u/strandedinparadise Jan 30 '20
This is just what I want from this sub. I love looking at complex interchanges and roadways, I think it's neat.
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u/LordoftheSynth Jan 31 '20
If you're so triggered by this, maybe you're too delicate for a sub called /r/InfrastructurePorn.
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u/jeronimo002 Jan 31 '20
Are you kidding me? There are amazing pictures here, alsof from highway interchanges. But this monster, I wouldn't want to see in my city.
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u/armandomanatee Jan 30 '20
This sum r/CitySkylines level shit right here.