Schnellfahrstrecke Köln-Aachen is also valid, my Ron. https://forums.dovetailgames.com/threads/guide-on-route-acronyms.56183/ No crash for me, to answer the OP's question.
Consolidating feedback into this thread, and locking the other one. Sorry to hear you're having issues. If you could check out this page on our Support Centre, there are lots of things you can try if you're experiencing a crash: https://dovetailgames.freshdesk.com...shooting-crashes-other-technical-issues-guide There's also the option of creating a ticket for us to check and try to help, too. I'd ask that you provide the files requested in Step 12 though, so we can better understand and diagnose what might be causing the issue.