The Rhein-Ruhr region of Germany, as seen in a few TSW routes, has one of the most extensive railway networks in the world. As well as the many cities served by passenger services, there is a huge amount of industry. Long distance and international trains also travel through it, and such is the density of both types of traffic, that there many freight-only, or a freight-dominated routes, in particular the Mulheim-Speldorf to Troisdorf route, which covers most of the route I'm proposing. It's an entirely electrified route, at least two tracked throughout, with multiple yards and industries, and is served by around 55,000 freight trains per year. It also interfaces with a number of passenger routes. Description: From south to north, the line starts at Troisdorf, where the Rechte Rheinstrecke and the Siegstrecke meet. Many freight trains come from these two routes, particularly the former, which is the main freight route to Southern Germany, Switzerland and beyond. For a while after this it's a six-track railway: the freight lines are to the west, with the Rhein-Main High Speed route in the middle, and S-Bahn and regional services on the eastern side, where there are a number of stations. After Porz station, the freight lines branch off to the west, to Gremberg yard, Cologne's main marshalling yard and a likely southern starting point for this route. After this there is a pair of junctions, where trains join from the Cologne South Bridge, which allows them to come from the linke Rheinstrecke or direction of Aachen without going through the busy Hauptbahnhof. After this, we pass under the Rechte Rheinstrecke, then alongside another yard, Kalk-Nord. We then run alongside Koeln-Mulheim station to our west (not to be confused with the Mulheim the route is named after), which is where the two main routes north of Cologne divide, and is therefore very busy with all types of passenger services. We branch off to the east again, then head back west to cross-over, then run alongside the main line from Cologne to Wuppertal. We pass through Opladen, where there is a scrap yard and a passenger station, then branch off to the west. Shortly after that, the Solingen to Duesseldorf line crosses over the top of us, and we run alongside that through the stations of Hilden and Duesseldorf-Eller, both served by the same S1 service you see in HRR. While that line heads west, we continue north, crossing the Duesseldorf to Wuppertal line (where there are connections), and disappear into a tunnel under suburban Duesseldorf. Shortly after we emerge, the S6 line to Essen joins us from the west, and we run alongside Duesseldorf Rath station, before that line climbs up and over and heads northeast a few miles later. After Ratingen-West, a disused station, we're joined by the Angertal bahn, a single line diesel route which serves a quarry. Continuing north, we pass a VOEST Alpine factory, then pass Duisburg-Entenfang station, the first of three stations on a parallel single line, which had a local service until 2019. The latter two stations, Bissingheim and Wedau, share a goods yard, albeit one much reduced from its former days. North of Duisburg-Wedau, we cease to be part of the line to Mulheim-Speldorf - indeed the connection is severed, with that line crossing us at right-angles. From the west, we are joined by a branch of this route, which comes from Krefeld and beyond. For a while now, the railway is four-track, and crosses Haupstrecke Rhein-Ruhr, at just after you turn east out of Duisburg. After this there is a branch west to Duisburg-Ruhrort Hafen, the largest inland port in Europe, which has a substantial yard as well as the quayside tracks you might accept. Shortly afterwards, another freight line comes in from the west, and we reach the large Oberhausen-West yard, after which there is a hugely complex set of junctions. We cross the line to the Dutch border, with a connection, where many trains branch off, then continue to another large yard, Oberhausen-Osterfeld. This yard is parallel to a passenger route, which has two stations, and at its eastern end, a large junction where passenger lines head north east to Bottrop Hbf, but we head east to Bottrop-Sud yard. There are also two lines here from Oberhausen-West, which bypass Osterfeld, and run alongside the main Oberhausen to Gelsenkirchen route. The route simplifies a bit, and we pass a steel factory and a branch to the canal port of Bottrop, before we reach Gelsenkirchen-Nordstern junction. Here, there are two ways of getting to Wanne-Eickel. Straight on is a more direct single line, but a two track railway heads north, where it joins the non-electified line from Dorsten. Here it passes Bismarck yard, and the passenger station at Gelsenkirchen Zoo, where the line splits again. Straight on and you continue past Wanne-Eickel, to Dortmund, Bochum, Recklinghausen and beyond, but for this route, we'll head sharply south, where we rejoin the line we just left, pass over the main line, and enter Wanne-Eickel yard, next to its passenger station. There are, by my count, 7 yards, and 9 active passenger stations, not to mention multiple industries and branches. Any German or international freight loco could be seen on the route, with a huge range of wagons, and at various points you would see ICE, Intercity, Regional and S-Bahn services as AI.
If the technology is right this would actually merge with the following routes RRO HRR SKA. If built Duisburg-Oberhausen-Arnhem Hollandstrecke. The most difficult train to drive on this route is the 189 with C-Akv couplers Falnqqs 130 Falrrs due your weight being 6,000 metric tons in the United States that comes out to 6.6k US tons. Conversion between the two is the following 1 metric tons = 1.1 US ton.