ASTRA Bridge - Future of motorway rehabilitation 

Probably the only tolerable ad on this entire platform lmao

The purpose of this video is not to sell anything, it's to showcase the cool stuff you get to work on at Marti to attract potential talent. It's kinda funny that not more companys are doing stuff like this.

Defo agree

100% agree, i found this channel from their other video regarding the tunneling project, and its made with the same quality as a full blown documentary, could watch this stuff all the time, also huge testament to the quality of the engineering

in switzerland we value quality over anything :)

Yeah what kind of work can they do underneath that bridge thing?

That is what I was also wondering. The working height is very limited, so that excludes any kind of heavy excavation machines or any kind of heavy machinery altogether (heavy pavement grinders typically measure 4.5m or more when you include the belt). That limits the effectiveness of the work done under the bridge. That said, the fact that the bridge does not limit traffic as much as closing a full lane means there is less pressure to finish the work as fast as possible.

@@zegamerz1980 They probobly have a specific set of machines its designed for. Or possibly a very specific machine that do all the work at once. So they run one lane. and run support trucks at the side. The move the bridge over sideways (probobly just take a minute or two) do the other lane. Then they move the bridge forward some 200 meters, then do it all again the next day.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ymyIEGRw4-U.htmlsi=DHHUDjFQtTnJAwHd

Part 2 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ymyIEGRw4-U.html

Last point, nicely said!

We have those in Austria. 20 Years or even more. Fum Fact they are constructed over bridges. But they are not 240 Meters long just 100.

I hate TV so much. Can't stand it any more. If I visit relatives and it's on I have to go outside or another room.

And not to forget the man who were working night shift away from home, family and hobbies to make this possible. The constructipneers have their regulated life and can have home, family and hobbies every day. Thats an easy way of live...

@@zyxwvutsrqponmlkh isn"t yt not a kind of tv. Watching something on a screen... and what do you want to tell the World with your text??

Looks "easy" to transport. So I'd assume each construction project would rent the bridge and it'd get trucked to each site.

I guess it would be worth it if that road is a major thoroughfare and a economic importance, also there's no viable detour routes (I believe all highways are a "descendants" of the old national routes but not all national routes can handle the current globalized amount of traffic especially those that goes thru the old towns)

A truck driver explained driving over that bridge to me in the following words: "Äs brätscht wie en sau". I like the concept, but the implementation needs to be fixed.

@@fffmmm22, bin schon über ähnliche Konstruktion (gleiches Konzept) gefahren, ob es in Holland oder in Deutschland war, weiß ich nicht mehr, allerdings das Ding „wackelt“ schon ziemlich, wenn da hunderte von Fahrzeugen drauf sind 😅

Speeds low, sure. But better than two closed lanes.

@@fffmmm22 I agree with the appraisal, the bridge realises a pretty massive bottleneck with road works. However, the approach grades seemed pretty sharp and with a 2km turning circle it would not be adaptable for use on a winding road. If solutions were developed for both of these, the concept could be unbelievably beneficial.

@@InternetKilledTV21 if it was a german highway the turn radius might as well be 2km...

Problem, why do they needs and what problem does it solve?

​@@lazyidiotofthemonth It prevents whole sections of freeway having to be closed for maintanance works as traffic can pass over the work site. This also helps the workers saftey as otherwise the traffic is often routed very closely around them to prevent closures. It's actually a gouvernment (ASTRA is the Swiss roads authority) project to have less traffic jams because of work.

@@schaulinnoam Pretty sure cones or a concrete barrier is much cheaper and does the same thing.

@@lazyidiotofthemonth what about traffic flow and worker safety? Its safer being under a bridge, than behind 1.5t piece of concrete, im pretty sure a 40t truck going 80kmh dosent care much for a piece of concrete in case of a accident

Thats the exact purpose of these videos, to attract talent. It's crazy that Marti seems to be the only company to understand the importance of attracting motivated young talent.

Same.

The problem in Switzerland is that a construction site means narrowing the Autobahn from two lanes to one lane. This notoriously creates huge problems on our Autobahn. With that bridge, the hope is to help traffic flow without having to take away one lane. Constructing such a bridge makes sense because roadwork is usually done on a stretch of road which is several kilometres long. It's especially important for trucks because if trucks get stuck in traffic, they could fall into the night curfew which would be a disaster for truckers. Avoiding traffic jams therefore is important for truckers. The bridge can move easily. When a patch of roadwork is done, it will move ahead 100 meters. And only being able to work on one lane is not an issue. Here in Switzerland, roadwork is usually done on one lane anyway with or without that bridge because as you narrow down the Autobahn from two lanes to one lane, the second lane still needs to be used for traffic. With that bridge, you can keep two lanes going while trucks can approach the road work site from the side of the bridge without being impeded by traffic. Without that bridge, you sometimes have issues with trucks, machinery and traffic all sharing a narrow space. So all in all, such an idea makes sense for Switzerland.

nope

And that series would be full of false drama and fake suspense and pointless padding

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ymyIEGRw4-U.html

They closed it for just two weekend nights. Milling up the existing surface and then laying down the new would certainly take more than that. And the traffic disruption during all the duration of all the work would have been greater than we see here, once the bridge is set up. We are never told if this is in support of a repaving or of a job with more digging.

​@@MottyGlix but you can't reach the sides of the road as the pillars are in the way, looks like finding a solution for a problem that doesn't exist.

it shows you at around 1:13 that the speed limit is 40km/h so... I think we are better off and cheaper with the 80km/h stuff going on right now.

ya.... I doubt anyone's blasting thru at 300km/h. the tailback probably starts like 3 km before ...

Do you reckon it could be improved by having a less steep angle to get on and off? Was there a fixed decision taken on it never being used again? If so, was it by Marti (in which case it will probably be dead for good) or a decision by the government, in which case they could use an improved version in another place with different government?

Would you really rather want to go around the highway?

It isn't a proof of concept. It is an actual bridge that is being used. Equipment fits underneath. Engineers have anticipated that. They don't just build a bridge and then realise that equipment doesn't fit underneath. They know exactly what dimensions their equipmen has and what is needed to accomodate them. I don't know why you would think that 8 lanes are needed... For what? They already use that bridge here and it works fine on existing Autobahns. You also highly overestimate the maintenance of such a bridge. Here in Switzerland, we also operate some of the most advanced tunnel boring machines and even those highly stressed machines don't need as much maintenance as people believe. So maintenance for such a "simple" bridge (compared to a boring machine) is not an issue. And also the man hours of setting up such a bridge is not an issue. Compared to the amount of time such road work takes, it is more efficient to have two lanes role over that bridge rather than having only one lane and huge traffic jams. If you have to sacrifice two nights for that, it makes a lot of sense for traffic planners and the economy which relies heavily on flowing traffic. You don't seem to understand at which technologically advanced level we Swiss work because the "flaws" you see have already been accounted for long time ago. And there are extensive cost/reward calculations which clearly show that such a bridge is worthwile. If you want to see how advanced Swiss people are, watch a documentary on how the Gotthard Base tunnel was built or the Ritom tunnel for electricity construction. That is some advanced stuff. If they can handle these, don't ever think that those some people have not thought about those easy question where you seem to spot problems. They are highly competent people and some of the best in the world.

well they gotta be able to use it for something cause thisll have cost some million dollars

Do you think they would have thought of that ahead of time?

@@ChevalRoadProduction Surprisingly, I think they did and have a working system

Part 2 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ymyIEGRw4-U.html

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ymyIEGRw4-U.htmlsi=MhIfzq-VNzHiLjw1

Really? Oh, than its sad that there does not exist any video tapeing of it, even not private videos. Can' t you do some and load them ip on yt?

@@MrDriftspirit yes indeed. I found 2 videos, one is showing how the so called „fly over bridge“ is constructed. Unfortunately it is of very low quality, the other one is about working under the fly over. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ALEC2NI7xuI.html and ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8oF1l5Hdims.html

​@@oachkatzlstreichla277Du erkennst nicht die riesigen Unterschiede zwischen den beiden? Ich hoffe mal dass du kein Enscheider in Tiefbau Projekten bist.

A fixed one, yes. This one is mobile

No, it is an actual bridge that is being used on our Autobahn. Right now on the A1. Not a proof of concept. The proof of concept design stage was years ago. I actually drove over that bridge several times.

Full width you would not have room for the working trucks etc.

@@GermoVwell you could leave the shoulder open i reckon since that doesn't need nearly the same level of maintenance. or you could build access points for vehicles and material into the bridge, and only block that lane for the moment they're actually used

that's the point

Yeah, that’s the idea!

They will design dedicated ones

It drives over the bridge?