leosv wrote:On NS, yes southbounds are generally odd numbers, but it's usually the opposite for coal trains. Southbound is even and loaded, northound is odd and empty. A letter with 2 digits are usually your locals. The 200's are pigs and they are ALWAYS hot.
Aren't all of NS's trains eastbound or westbound? I believe so. Eastbounds are even-numbered, westbounds are odd-numbered. 000s are passenger trains (Amtrak and circus trains). 100s and 300s are manifests, 200s are automotive or intermodel, 500s are grainers or other unit trains, 600s and 800s are coal trains and 900s are special movements like light engine moves, geometry trains or OCSs.
And beyond that, there are always extras, which NS puts a letter for the first digit. M is an extra 1, I is an extra 2, W is an extra 3 and S is an extra 8. There may be more but I don't know them.