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