Wikipedia:Articles for deletion/Signal Rules of the Chessie System
This seems to be contrary to  as a listing of signals used internally by a private company, and less encyclopedic than, say highway signs, or other signals used by the general public. If the present signal system of this railroad is encyclopedic without satisfying the |GNG via significant coverage in multiple reliable and independent sources, then every internal system of rules or signals, basically every employee handbook of every major company and organization would be eligible for an article. Certainly the rulebook of every railroad in history as it related to signalling would be equally eligible for an article (Such as historic Illinois Central: Five long whistle sounds, followed by ten short whistle sounds: Flagman for train number 10 may return from the North. Etc, on and on.). That said, it is a very nice looking article
— User:Edison, 21:01, 8 December 2010 (UTC)
Stance: delete
Cited policy: WP:NOT||WP:N (Wikipedia:What Wikipedia is not)