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