We tried a lot things only to simplify the schedule of trains. But it was still a hard thing to do. We named all the tunnels with the same name, and considered to seperate crafting area and highway. Crafting areas only connect to highway. So that all the schedule should look like Station A,tunnelx4,Station B,tunnelx4. But it wasn't good to use yet, at least on servers. Have you tried to send email to dev asking them for some further work on rail system. I think a railway bridge would be nice.
