[a / b / c / d / e / f / g / gif / h / hr / k / m / o / p / r / s / t / u / v / vg / vr / w / wg] [i / ic] [r9k / s4s / vip / qa] [cm / hm / lgbt / y] [3 / aco / adv / an / asp / bant / biz / cgl / ck / co / diy / fa / fit / gd / hc / his / int / jp / lit / mlp / mu / n / news / out / po / pol / qst / sci / soc / sp / tg / toy / trv / tv / vp / wsg / wsr / x] [Settings] [Search] [Home]
Board
Settings Home
/n/ - Transportation

Name
Options
Comment
Verification
4chan Pass users can bypass this verification. [Learn More] [Login]
File
  • Please read the Rules and FAQ before posting.
  • There are 40 posters in this thread.

05/04/17New trial board added: /bant/ - International/Random
10/04/16New board for 4chan Pass users: /vip/ - Very Important Posts
06/20/16New 4chan Banner Contest with a chance to win a 4chan Pass! See the contest page for details.
[Hide] [Show All]


Now accepting credit card payment for 4chan Pass purchases and renewals. Click here for details.


File: 1532413985121.jpg (140 KB, 704x420)
140 KB
140 KB JPG
What are these concrete walls for?
>>
Jannies PLEASE
>>
Ostensibly to prevent 160-mph head-on collisions, but mostly to peel tires off of semi-truck rims and smash doors of ricers.
>>
>>1278212
Your board has no sticky and I thought it was the right board for my question.
>>
>>1278216
It is. Urban planning discussion goes here. He is probably one of the morons who thinks any picture with a car is off topic.
>>
>>1278210
wow 3 seconds on internet search
https://en.wikipedia.org/wiki/Median_strip

sage
>>
File: 1544927763267.png (282 KB, 800x447)
282 KB
282 KB PNG
ITS NOTHING BUT A TUBE
>>
>>1278210
To prevent people from flying into ongoing traffic.
If you will try to do it it will automatically kick you back.
>>
>>1278236
>it it will automatically kick you back.
But how does it know?
>>
>>1278237
Special form.
https://www.youtube.com/watch?v=WG89EmezYts
>>
https://www.youtube.com/watch?v=CBrPVmuGp2U
Here is more.
>>
>>1278217
I think it's an extremely low quality post with an obvious answer.
>>
File: parapet.jpg (226 KB, 652x405)
226 KB
226 KB JPG
Parapets that let you actually see off the bridge are better than concrete barriers
>>
>>1278248
Maybe, but concrete one is better that none.
Also it is smaller, thus can be retrofitted everywhere.
>>
File: 001.jpg (224 KB, 800x533)
224 KB
224 KB JPG
>>1278217
>>1278245
Urban design, transport planning, and road engineering goes here, but OP is extremely low quality and should be shamed for his stupid and slothful question. There's not an attempt to compare, discuss, analyze, or ask details and specifics.


>>1278248
>see off the bridge
You aren't supposed to look that way.
I like cable barriers.
>>
>>1278268
Cable barriers are absolutely not bike friendly.
>>
>>1278268
>You aren't supposed to look that way.
Fuck you!
>>
>>1278270
They're more costly to install and more labor-intensive to repair.

They will decapitate a motorcyclist.
>>
>>1278280
Why are they installed in highway medians instead of metal guard rails?
>>
>>1278270
Thats why i like them
>>
>>1278280
Yes, but you can retrofit them everywhere.
>>1278284
Space and shit.
>>
>>1278238
>a guy got paid to drive that truck
I wish my job was that fun
>>
>>1278289
>Space and shit.

What?
>>
>>1278270
>>1278280
>They will decapitate a motorcyclist.
I see mixed conclusions. It doesn't seem significant.
>>
>>1278220
this post is chronically underrated
>>
File: cor-ten.jpg (66 KB, 586x390)
66 KB
66 KB JPG
Cor-ten or weathering steel rusts to a certain point, then stops. I wish they used it on guard rails more often because it blends in with trees and whatever else is on the side of the road in rural areas compared to conventional galvanized guard rails. I presume it's a lot more expensive than galvanized.
>>
File: A_20_bei_Langsdorf.jpg (203 KB, 1024x673)
203 KB
203 KB JPG
>>1278210 (OP)
Same purpose these metal barriers are for.
>>
>>1278210
To decrease severity of crashes
Fuck off to >>>/o/
>>
>>1278598
It can protect even buses
>>
>>1278605
Yeah let's discuss best practice in physical segregation of bike and bus lanes in /n/ right.
>>
File: barrier transfer.jpg (52 KB, 720x382)
52 KB
52 KB JPG
I wish it was practical to do this on a larger scale. You could make more lanes available for rush hour each way without adding more lanes.
>>
>>1278560
It doesn't stop:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://galvanizeit.org/uploads/publications/Galvanized_Steel_vs_Weathering_Steel.pdf&ved=2ahUKEwjlt4e3no7gAhWs1VkKHZ2yAA8QFjABegQIDRAE&usg=AOvVaw2VD2DSlCMJS_ZXJgI36HLL
>>
File: new river gorge.jpg (267 KB, 1280x607)
267 KB
267 KB JPG
>>1278783
In certain environments and situations that happens but it's not a considerable problem
>>
>>1278708
Not this way. Tidal flow operation can be easily done with at least triple carriageway, ie the odd central one reversible. (like a local-express system)
This asymmetric configuration is commonly found in road expansions. Say you have a tunneled or elevated four-lane two-way in two two-lane carriageways (tubes or viaducts). You can add two more two-lane carriageway for eight-lane two-way, or one three-lane tube for seven-lane two-way with four-lane in the peak direction.
Since the a.m rush hour is usually more predominant and concentrated, it could be wise to permantly make the inbound direction have more lanes.
>>
>>1278839
* Reversible central carriageway can be combined with HOV/HOT management.
>>
I never said anything about limited access highways
>>
File: Glare Screen.jpg (194 KB, 780x350)
194 KB
194 KB JPG
These should be mandatory everywhere highways are partitioned with barriers
>>
"Urban design" has no place on /n/. /n/ is about transportation. Not exercise or what fashion acessories look best when sucking off your boyfriend while riding bikes.

Bikefags and communists need to get off of /n/.
>>
>>1280313
those are to prevent other drivers from being blinded by oncoming headlights?
>>
>>1282023
yes
>>
>>1280861
Automobile transportation is on /o/
Non-automobile transportation is heavily tied to urban areas, arms are heavily affected by urban planning, and belongs on /n/
>>
>>1282028
Your agenda 21 shit doesn't belong here, moron.

>Let's make a thread about destroying the suburbs, the nuclear family, and getting everyone to live in pogroms.
>It's /n/ related because the private ownership of personal automobiles will be outlawed. :^)
Get bent.
>>
>>1282042
I would assume my level headed post would make you drop the strawman but instead you doubled down on it
>>
>>1280861
...but bikes are a form of transportation?
>>
>>1282135
>Strawman
You are even dumber than I thought.
>>
File: parapet.jpg (284 KB, 900x602)
284 KB
284 KB JPG
More bridges should have parapets like this, they just look better than modern jersey barriers and their variants
>>
>>1278215
>160-mph head-on collisions
>he can't into basic physics
>>
>>1280861
cry more
>>
>>1280313
>>1282023
But those won't do shit for roof mounted lights on trucks.
>>
>>1278248
na they snap of easy
>>
>>1284739
>But those won't do shit for roof mounted lights on trucks.

I've never seen roof-mounted lights on trucks here, if they're legal they're uncommon


>>1284771
Source?
>>
>>1284794
>I've never seen roof-mounted lights on trucks here
I've seen them. But they are not legal for use on the road. Get caught, cop will probably remove them with a nightstick.
>>
>>1285348
Oh, like those light bars for off roading? I see a lot of them around but they're not road legal so they're always off and never a problem
>>
Heh. OP's joke is about Trump's border wall. I'm going back to sleep.
>>
They found a way to make jersey barriers look even worse
>>
>>1282746
80+80=160
>>
>>1286293
But force of impact will be identical to 80 into the wall. Not 160
>>
>>1278708
http://pathetic.org.uk/current/a38m/
https://en.wikipedia.org/wiki/A38(M)_motorway
>>
>>1287440
>single-carriageway
>motorway
This is beyond pathetic, beyond retardation. Just redesignate it as a fucking expressway.
>>
>>1287511
It does work quite well despite being a single carriageway. I suggest you look at the pictures, and also the rest of the website because in the UK there genuinely are 1 lane per direction single carriageway motorways.
>>
>>1287672
No I don't have any problem with its function or operation. If it works, it's clever enough. But either barriers be installed, or they should be downgraded from motorway to expressway or something else.
https://www.sabre-roads.org.uk/wiki/index.php?title=List_of_Single_Carriageway_Motorways
>The A6144(M) was a single carriageway motorway before it was downgraded to A6144.
It's not so hard.
>>
>>1287689
>3 lane per direction or 4 in one and 2 in the other at peak times
>Motorway speed limits
>Motorway junctions
Why would you downgrade it? It already doesn't have full motorway status, and you example was literally a shitty countryside road.
>>
>>1287694
Why would you not? Why should it be kept as a motorway then? If you want motorway rules, they are formally designated as Special Roads in the first place, and it can be one without being a Motorway. Would you ignore those examples of non-motorway special roads now?
>Aston Expressway
>Expressway
The example is showing it's been done before. It can happen on any of them.
>>
>>1278210
To prevent U-turns. American highways are shitty and if you miss a turn you'd have to drive miles to find a long way around.
>>
>>1287722
>American highways are shitty

Best in the world actually
>>
stopping illegals
>>
>>1287722
You must drive on the same route as my commute. I can only imagine that someone so dumb to think making u-turns on a freeway is acceptable must also ride and stop in the bikelanes on my way to work.
>>
I wish there were more barriers in congested stretches of highway to prevent kamikaze left turns and retarded pedestrians
>>
>>1287702
I don't think that the rest should be kept as motorways, they're only kept as motorways because of British Legislative Autismâ„¢.
>>
>>1278210
parkour for cars
carkour
>>
>>1278248
Except for bikers who'll slide underneath and fall to their death.
>>
>>1282730
Minnehaha creek?
>>
>>1288055
Are you retarded
>>
>>1288055
(You)
>>
File: Rudolf Hess returns!.jpg (90 KB, 1280x720)
90 KB
90 KB JPG
>>1278210

To land your plane on.
>>
>>1288091
thx, that's my preferred pronoun.



Delete Post: [File Only] Style:
[Disable Mobile View / Use Desktop Site]

[Enable Mobile View / Use Mobile Site]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.