@Some newbie driver
Wrong. The railroad doesn't have any lobby like cars etc. The point is that over the past years/decades a lot of railways got scrapped so that the infrastructure of the railroad is extremely bad to hande all these extra trains for cargo and the connection to different places is also not always given.
Another point is that using trains instead of trucks would be just too expensive. Yes. As we got our 'great' market economy where you always have pressure to be the best, the cheapest, etc. the railroad just looses against each company which uses trucks to haul cargo. And using companies from eastern Europe makes it even more cheap...
So, in my opinion it has something to do with cowardice like @xXCARL1992Xx
said. In some points the government has to control stuff. They never had interest in railroad like Switzerland for example. This country is a brilliant example for a perfect working railroad network. In Germany cars and trucks are above everything. And don't forget, building new railroad tracks, hiring new people, buying new trains costs a lot of money. Let thousands of trucks passing our roads will make you earn a lot of money...
And talking about the weight of trucks... well, just take a look at our roads and like @HRTrucking
said, our bridges. Our roads are just to bad to handle higher weights. I see daily Gigaliner and other extra long trucks as we got a lot of automotive companies and a VW manufactory in the area. But they only use them as automotive parts are very light and you can carry more parts and don't exceed the weight limit.
At some places our roads are really worse. Maybe one of you have read about this, I live at the famous part of the A4 where the speed limit was reduced from unlimited to 60kph. Yes. 60kph on an Autobahn.
Any why? The complete roads was reworked some years ago but as it has to be as cheap as possible they used gravel which didn't matched the concrete and now we got a completely broken surface.
I don't know how much money they fetch with the toll but I think it is a lot. And if the toll for cars come (I honestly don't believe in it) the will earn so much more. But the money isn't used for it as it should. You could build perfect streets with it but no one is interested in it. It's much better to build never finished airports from it...
Now, more than one year after they noticed that the road breaks they start to rebuild it. And what did they do? Just leave everythink like before, at some places they just put a new layer above it and at some other places they just fix the brokes parts so that you don't have a pothole anymore, now you have shock edge.
And we don't talk about a small sector, it is about 25km long in each direction!