Some Train Diagramming Mini Drill Questions #4 and #7

[Tamirra]

Hi,
I answered the questions correct: J L and S U (that S should have a strikethrough, I'm not tech savvy enough to make it happen here ) but I noticed in the answers, they were reversed. Since they're both double arrows, does it matter?)

Thanks,
Tamirra

[Dave Killoran]

Hi Tamirra!

Nope, it doesn’t matter at all—double arrows can be reversed so it’s identical from either direction

Thanks!