Layout   Where do we talk about layout  I was curious about curve terminology ie the fact that a two degree curve is sharper than a one degree curve and where the degrees are actually measured and what the relationship is to radius  I found the answer easily enough with a google search but it clearly ought to be discussed in Wikipedia somewhere along with other details of railway surveying    Its somewhat amusing that weve got a whole article on Track transition curve but no coverage of normal curves at all  That I can find  Does a Layout or Surveying section in this article make sense  I might just get bold and start adding it