N&W 1981 1981 As described in the March 1, 1981 edition of The Norfolk and Western Operating Rules. 20092010JMRI GregMcCartney gpmccartney@gmail.com 1 2015-10-19 GPM Initial version of the signal set. 2 2016-01-26 GPM Corrected the aspect mapping and added the NW color, search, and semaphore signals. 2.1 2016-11-24 ST Added default aspect numbers 2.2 2018-11-27 GPM Changed speed1 and speed2 from Restricting to Restricted under aspect Restricting. Clear Rule 281 Proceed at prescribed speed Page 60 Normal Normal 14 Approach Diverging Rule 282 Proceed preparing to take diverging route beyond next signal at prescribed speed. Page 61 Normal Medium 13 Advance Approach Rule 282A Proceed preparing to stop at the second signal Page 61 Normal Normal 12 Diverging Clear Rule 283 Proceed through turnout or turnouts at prescribed speed. Page 62 Medium Medium Diverging 11 Diverging Approach Diverging Rule 283B Proceed through turnout or turnouts at prescribed speed preparing to take diverging route beyond next signal at prescribed speed. Page 62 Medium Medium Diverging 10 Approach Rule 285 Proceed preparing to stop at next signal. Page 63 Medium Slow 8 Diverging Approach Rule 286 Proceed through turnout or turnouts at prescribed speed preparing to stop at next signal. Page 64 Medium Slow Diverging 6 Slow Clear Rule 287 Proceed; Slow speed within interlocking limits or through turnout or turnouts. Page 64 Slow Normal Either 5 Slow Approach Rule 288 Proceed preparing to stop at next signal; Slow speed within interlocking limits or through turnout or turnouts. Page 65 Slow Slow Either 4 Restricting Rule 290 Proceed at restricted speed. Page 65 Restricted Restricted Either 2 Stop and Proceed Rule 291 Stop; then proceed at restricted speed. Page 66 Stop Stop Normal 1 Stop and Stay Rule 292 Stop and stay. Page 66 Stop Stop Either 0