.^~^%@§#@#                                          #@#§@%^~^.
....~%%§#@                                          @#§%%~....
.^~^%@§#@#                                          #@#§@%^~^.
.^~^^%@§§@                                          @§§@%^^~^.
.^~^%@§#@@                                          @@#§@%^~^.
....~~~%@§                  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!         #§§%^~....
....~%%%@#                                          #@%%%~....
.^~^%@§#@#                                          #@#§@%^~^.
.^~^%@§#@#                                          #@#§@%^~^.
.^~^%@§###                                          ###§@%^~^.
......^~%§                                          §%~^......
..^^^^^%§#                                          #§%^^^^^..