2010 2016 JMRI Suzie Tall suzie_tall@yahoo.co.uk 1.0 2016-12-02 ST Initial Version 2 2020-03-05 GM Initial version of the 1980 C&O Signal rules. This set was created by back dating the CSX-2014-Chessie rule set created by Suzi Tall. Back dating required removal of some aspects and altering the mapping to compensate for their removal. While based on the 1980 rule book, they are the same rules that were in affect in 1969. C&O 1980 1 Head Buffer stop As described in the 1980 version of the Chessie System Operating Rules "Signal Rules - 281-292". Appearances for a buffer stop or stop board Stop red Rule 292 ../../../resources/icons/smallschematics/aspects/CSX-2014-Chessie/CO-1-lo/rule-C1292.gif Unlit dark - ../../../resources/icons/smallschematics/aspects/CSX-2014-Chessie/CO-1-lo/CO-1-lo.gif Stop Stop Stop Unlit Clear Stop Approach Medium Stop Medium Clear Stop Medium Approach Slow Stop Approach Slow Stop Approach Stop Medium Approach Stop Slow Clear Stop Slow Approach Stop Restricting Stop Stop and Proceed Stop Stop Stop