My routes have loops, "Y's", or turntables at several yards, but yes, most routes do not. That is one of the reasons there are usually at least 2 locomotives pulling trains these days, coupled back-to-back. When you get to the end of the route, the locos just "run around" and the loco that was previously "trailing" is now the lead.
I'm talking about routes that do not have portals. (Trying to cover my arse because I know there'll be somebody that mentions portals as a way to turn a loco around. I don't use any portals except maybe a re-rail portal, because I don't care at all for them. Just my likes/dislikes and my humble opinion.)
Dave
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