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