,,,,^^^§&&                                          &&§^^^,,,,
,^=^=§&@##                                          ##@&§=^=^,
,,,,,^^^=&                                          &=^^^,,,,,
^=^=§&@###                                          ###@&§=^=^
,,,,^^^§@#                                          #@§^^^,,,,
,^=^=§&@@#                   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!         ##@&§=^=^,
,^=^=§@###                                          ###@§=^=^,
,^=^=&@###                                          ###@&=^=^,
,^=^=§§§§@                                          @§§§§=^=^,
,,,==^§&@#                                          #@&§^==,,,
,,,^^^§&@#                                          #@&§^^^,,,
,,,^^===&@                                          @&===^^,,,