.&.&&....&                                          .&.&&..&.&
...&&&....                                          ...&&&....
...&.&&...                                          ...&.&&...
.....&&&..                                          .....&&&..
.....&.&&.                                          .....&.&&.
.......&&&                   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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.&&&..&.&&                                          .....&&&..
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