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&.&.&.&&.&                                          &&..&.&.&.
&.&.&..&.&                  R41LS                   &&.&&.&.&.
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&.&.&.&&.& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &&..&.&.&.
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&.&.&.&&.& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& .&..&.&.&.
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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.                  .&..&.&.&.
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&.&.&.&&.& 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. .&.&&.&.&.
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&.&.&..&.&                 &&&&&&&&                 .&.&&.&.&.
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&.&.&..&.& 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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