NYC-1956 1956 As described in the New York Central System publication "Rules of the Operating Department, Effective October 28, 1956" 20092010JMRI JohnLang 1 2013-03-28 JDL Initial version 2 2013-07-07 JDL aspect mapping revisions 2.1 2013-12-30 JDL fixed aspect name reference in appearence files. tweaked aspect mappings Clear Rule 281 Proceed Page 86 Normal Normal Normal Advance Approach Medium Rule 281A Proceed approaching second signal at medium speed Page 88 Normal Limited Normal Approach Limited Rule 281B Proceed approaching next signal at limited speed. Train exceeding 60MPH must at once reduce to that speed Page 89 Normal Limited Normal Limited Clear Rule 281C Limited speed within interlocking limits Page 90 Limited Normal Diverging Limited-Approach Rule 281D Proceed at limited speed preparing to stop at next signal Page 90 Limited Stop Diverging Approach Medium Rule 282 Proceed approaching next signal at medium speed. Train exceeding limited speed must at once reduce to that speed Page 91 Limited Medium Either Advance Approach Rule 282A Proceed preparing to stop at second signal. Train exceeding limited speed must at once reduce to that speed Page 92 Limited Medium Either Medium Clear Rule 283 Proceed: medium speed within interlockings Page 93 Medium Normal Diverging Medium-Advance Approach Rule 283A Proceed preparing to stop at second signal: Medium speed within interlocking limits Page 93 Medium Medium Diverging Medium-Approach Slow Rule 283B Proceed medium speed approaching next signal at slow speed Page 94 Medium Slow Either Approach Slow Rule 284 Proceed approaching next signal at slow speed Train exceeding medium speed must at once reduce to that speed Page 94 Medium Slow Normal Approach Rule 285 Proceed preparing to stop at next signal. Train exceeding medium speed must at once reduce to that speed Page 95 Medium Stop Normal Medium-Approach Rule 286 Proceed medium speed preparing to stop at next signal Page 96 Medium Stop Diverging Slow-Clear Rule 287 Proceed: slow speed within interlocking limits Page 97 Slow Normal Diverging Slow-Approach Rule 288 Proceed preparing to stop at next signal: slow speed within interlocking limits Page 97 Slow Stop Diverging Restricting Rule 290 Proceed at restricted speed Page 98 Restricted Restricted Either Stop Rule 292 Stop Page 99 Stop Stop Either Stop and Proceed Rule 291 Stop And Proceed Page 99 Stop Slow Either Held Rule 292 Stop. Page 105 Stop Stop Either