Um, whoever is highlighting those lines has some of it wrong for my area. They incorrectly marked mainlines for branches and branches for mainlines. Otherwise it's an interesting project.
"Just post some random unrelated text. We have members here who can help you with that." ~ Chacal "When all else fails, read the instructions... if that doesn't work either, try following them." ~ Old Prof The Grade Crossing - Atlanta North Project - Virtual Rail Creations