SLSF 1973 As described in the July 1978 Revision of the St. Louis San Francisco Railway Company publication "RULES for the Maintenance of way and Structures" effective July 1,1973, chapter titled Description of Signals. As noted in the source material, these rules are rules of the Frisco Transportation department. 20092010JMRI DickBronson PaulBender 1 2010-01-01 DB Initial version 2 2010-01-12 PAB Adapted from 1937 NYCS 3 2013-07-09 PAB Add speed information Clear Rule 281 Proceed Page 16 Normal Normal Normal Advance Approach Rule 282 Proceed preparing to stop at second signal Page 16 Normal Normal Normal Approach Limited Rule 283 Proceed approaching next signal at limited speed. Page 16 Limited Normal Normal Approach Medium Rule 284 Proceed approaching next signal at medium speed Page 16 Medium Medium Normal Approach Rule 285 Proceed preparing to stop at next signal. Train exceeding medium speed must at once reduce to that speed. Page 18 Medium Medium Normal Diverging Clear Rule 286 Proceed through turnout at prescribed speed Page 18 Medium Normal Diverging Diverging Approach Rule 287 Proceed through turnout at prescribed speed, prepared to stop at next signal except when entering a siding, then be goverened by rule 105 of the transportation department. Page 18 Medium Medium Diverging Restricting Rule 288 Proceed at restricted speed. Page 18 Restricted Restricted Either Grade Rule 289 Proceed at restricted speed. Page 18 Restricted Restricted Either Stop and Proceed Rule 290 Stop. then proceed in accordance with rule 510 R 510 (a) of the transportation department. Page 18 Restricted Restricted Either Stop Rule 291 Stop. Page 20 Stop Stop Either