,,,&&&&&&&                                          &&&&,&,,,,
,,&,,,,,,,                                          ,,,&&&,,,,
,&&,,,,,,,                                          ,,&,,&,,,,
&,&,,,,,,,                                          ,&&,&&,,,,
&&&,,,,,,,                                          &,&&,&,,,&
,,&,,,,,,,                   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!         ,,,,,,&,&&
,,,&,&,&&,                                          ,,,,,&&&,,
,,&&&&&,&,                                          ,,,,&,,&,,
,&,,,,&&&,                                          ,,,&&,&&,,
&&,,,&,,&&                                          ,,&,&&,&,,
,&,,&&,&,,                                          ,&&&,&&&,&
&&,&,&&&,&                                          &,,&&,,&&&