Traction Planbook by Harold H. Carstens
My rating: 4 of 5 stars
Very dated by now, but since most of these lines stopped running well before the book was published, that doesn’t matter so much. At least not for the prototype information. Of course since the book was published other scales, especially N, have gained steam (no pun intended (ok, maybe a little bit intentional)). So, for prototype and overview information it is great. And that is exactly what I was looking for. For the more modern information there are tons of websites and even newsgroups. I stil wish a large, modern, comprehensive guide could be published. But I know that would be a daunting and less that profitable task.
