...~//*£@@                                          @@£*//~...
.,~/*£££££                                          £££££*/~,.
......,/*£                                          £*/,......
.,~/*££@##                                          ##@££*/~,.
.,~/*£££@#                                          #@£££*/~,.
.,~//*££££                  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!        @££*~.....
.,~//*££££                                          ££££*//~,.
.,~/*££@##                                          ##@££*/~,.
.,,,~~/£@#                                          #@£/~~,,,.
.,~/*££###                                          ###££*/~,.
....,,//££                                          ££//,,....
.,~/*££@##                                          ##@££*/~,.