.......,~^                                          ^~,.......
........,~                                          ~,........
.........,                                          ,.........
........,~                                          ~,........
.......,~^                                          ^~,.......
......,~^*                   R41LS                  *^~,......
.....,~^*$                                          $*^~,.....
....,~^*$@                                          @$*^~,....
...,~^*$@@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@$*^~,...
..,~^*$@@#                                          #@@$*^~,..
.,~^*$@@## @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ##@@$*^~,.
..,~^*$@@#                                          #@@$*^~,..
...,~^*$@@                                          @@$*^~,...
....,~^*$@ TR41NS  4R3  SO  CONSTRUCT3D  TH4T  TH3Y @$*^~,....
.....,~^*$ H4V3 TO FOLLOW 4 S3T P4TH. TH1S P4TH  1S $*^~,.....
......,~^* C4LL3D 4 "R41LWAY",  WH1CH  1S COMPR1S3D *^~,......
.......,~^ OF TWO M3T4L R41LS,  H3NCE 1TS N1CKN4M3. ^~,.......
........,~                                          ~,........
........., B3C4USE  TH3  LOW FR1CTION  B3TWEEN  TH3 ,.........
........,~ WH3ELS OF TH3 TR41N 4ND TH3 R41L  M3T4L, ~,........
.......,~^ TH3RE 4R3 L1MITS FOR  HOW 4CUT3 4  CURV3 ^~,.......
......,~^* C4N B3, 4ND 3VEN  MOR3  SO  FOR HOW MUCH *^~,......
.....,~^*$ TH3  GROUND  UND3R  TH3   R41LS  C4N  B3 $*^~,.....
....,~^*$@ SLOP3D. THUS 4 R41LWAY 1S  OFT3N NOT L3D @$*^~,....
...,~^*$@@ ON TOP OF H1LLS, R4TH3R THROUGH  TH3M 1N @@$*^~,...
..,~^*$@@# TUNN3LS   (1F   TH3Y   4R3  L4RG3),   OR #@@$*^~,..
.,~^*$@@##            4RT1FICIAL CH4SMS.            ##@@$*^~,.
..,~^*$@@#                                          #@@$*^~,..
...,~^*$@@ TH3RE W1LL  B3 TR3ES ON TH3 S1D3 OF  TH3 @@$*^~,...
....,~^*$@ R41LS, BUT NOT  TOO CLOS3,  OR TH3Y W1LL @$*^~,....
.....,~^*$ B3  CUT  DOWN  BY TH3  R41LWAY J4N1TORS. $*^~,.....
......,~^* TH3RE  W1LL  B3 PL41NS,  4ND  BOD13S  OF *^~,......
.......,~^                  W4T3R.                  ^~,.......
........,~                                          ~,........
........., TR41NS  GO  BY D4Y  4ND  BY N1GHT. 4LONG ,.........
........,~      TH3 W4Y, TH3RE 1S 1NFORM4TION       ~,........
.......,~^ SC4TT3RED, OFT3N  PUT ON  TOP  OF POL3S, ^~,.......
......,~^* TO B3 1NT3RPRETED BY TH3  TR41N DR1V3RS. *^~,......
.....,~^*$ D1FF3RENT  P4RTS  OF  TH3  R41LWAY  H4V3 $*^~,.....
....,~^*$@          D1FF3RENT SP3ED L1MITS.         @$*^~,....
...,~^*$@@                                          @@$*^~,...
..,~^*$@@# SOM3T1MES, TR41NS H4V3 TO STOP 4ND  W41T #@@$*^~,..
.,~^*$@@## FOR SOM3TH1NG  TO H4PP3N, F4R 4WAY. TH1S ##@@$*^~,.
..,~^*$@@# 1S S1GN4L3D  BY  R3D  OR  GR3EN  L1GHTS. #@@$*^~,..
...,~^*$@@                                          @@$*^~,...
....,~^*$@                 @@@@@@@@                 @$*^~,....
.....,~^*$                                          $*^~,.....
......,~^* M4NY  P3OPLE FOLLOW  TH3  R41LS BY FOOT. *^~,......
.......,~^ OFT3N  TH1S  PROV3S  TO  B3  TH3 SHORT3R ^~,.......
........,~ P4TH  B3TWEEN  TWO PO1NTS. HOW3VER  TH1S ~,........
........., 1S  FROWN3D   UPON,  4ND  V3RY  1MPOLIT3 ,.........
........,~         TOW4RD TH3 TR41N DR1V3RS!        ~,........
.......,~^                                          ^~,.......
......,~^*                                          *^~,......
.....,~^*$                                          $*^~,.....
....,~^*$@                                          @$*^~,....
...,~^*$@@                                          @@$*^~,...
..,~^*$@@#                                          #@@$*^~,..