Potentially a line off of the main route-
The route that has been shown in the past screenshots is basically the main route, and so far it has been the only one. But I am most likely going to make two routes merge, (one joining into the main route) and from the main route, that new line will lead to an even bigger city, that will be very close, if not part of the very first city on the route (in the very first screenshot on the thread.) That way both the main route and the new route will lead up to a big metropolis, or at least another city. In the future, I might make even more routes branching off of the future city, and make a larger railroad, but let's not get ahead of ourselves!
The new route I will make merging off the main one will also have a 3rd rail and I will put some m7s on the line.