@@@.@.@.@.                                          .@@.......
@.@......@                                          .@@@......
...@......                                          .@.@@.....
....@.....                                          ...@@@....
.....@....                                          ...@.@@...
......@...                   R41LS                  .....@@@..
.......@..                                          .....@.@@.
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@........@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ .......@.@
@@........                                          @........@
.@@....... @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @@.......@
.@@@......                                          @@@.......
.@.@@.....                                          @.@@......
...@@@.... 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!        @......@..
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