==^.......                                          .......^==
=^........                                          ........^=
^.........                                          .........^
..........                                          ..........
^.........                                          .........^
=^........                   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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