&..&&..&..                                          .&.&..&.&.
&&.&.&.&&.                                          .&&&&.&&&&
..&&&&&&.&                                          &&...&&...
..&.....&&                                          &.&..&.&..
..&&....&.                                          &&&&.&&&&.
..&.&...&&                   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!         &&..&&..&&
.&&&&.....                                          ..&.&.&.&.
.&...&....                                          &.&&&&&&&&
&&&..&&...                                          .&&.......
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