&,&,,&&&&,                                          ,,&,&,,&&&
,&&&,&,,,&                                          ,,&&&&,&,,
,&,,&&&,,&                                          &,&,,,&&&,
,&&,&,,&,&                                          ,&&&,,&,,&
&&,&&&,&&&                                          &&,,&,&&,&
,,&&,,&&,,                  RAILS                   ,,&,&&&,&&
&,&,&,&,&,                                          &,&&&,,&&,
&&&&&&&&&&                                          ,&&,,&,&,&
,,,,,,,,,, &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& ,&,&,&&&&&
&,,,,,,,,,                                          ,&&&&&,,,,
&&,,,,,,,, &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &&,,,,&,,,
&,&,,,,,,,                                          ,,&,,,&&,,
&&&&,,,,,,                                          &,&&,,&,&,
&,,,&,,,,, TRAINS  ARE  SO  CONSTRUCTED  THAT  THEY &&&,&,&&&&
,&,,&&,,,, HAVE TO FOLLOW A SET PATH.  THIS PATH IS &,,&&&&,,,
,&&,&,&,,, CALLED  A "RAILWAY",  WHICH IS COMPRISED &&,&,,,&,,
,&,&&&&&,, OF TWO METAL  RAILS, HENCE ITS NICKNAME. &,&&&,,&&,
,&&&,,,,&,                                          &&&,,&,&,&
&&,,&,,,&& BECAUSE  THE  LOW  FRICTION  BETWEEN THE ,,,&,&&&&&
,,&,&&,,&, WHEELS OF  THE TRAIN AND THE RAIL METAL, &,,&&&,,,,
,,&&&,&,&& THERE ARE LIMITS FOR HOW  ACUTE A  CURVE &&,&,,&,,,
,,&,,&&&&, CAN BE, AND EVEN  MORE  SO FOR  HOW MUCH &,&&&,&&,,
,,&&,&,,,& THE  GROUND  UNDER   THE  RAILS  CAN  BE ,&&,,&&,&,
,,&,&&&,,& SLOPED. THUS A  RAILWAY IS OFTEN NOT LED &&,&,&,&&&
&,&&&,,&,& ON TOP OF HILLS, RATHER  THROUGH THEM IN ,,&&&&&&,,
&&&,,&,&&& TUNNELS   (IF   THEY   ARE   LARGE),  OR ,,&,,,,,&,
&,,&,&&&,,            ARTIFICIAL CHASMS.            &,&&,,,,&&
,&,&&&,,&,                                          &&&,&,,,&,
,&&&,,&,&& THERE  WILL BE TREES ON  THE SIDE OF THE &,,&&&,,&&
&&,,&,&&&, RAILS,  BUT NOT TOO CLOSE, OR  THEY WILL &&,&,,&,&,
&,&,&&&,,& BE CUT  DOWN  BY  THE RAILWAY  JANITORS. ,,&&&,&&&&
,&&&&,,&,& THERE  WILL  BE PLAINS,  AND  BODIES  OF &,&,,&&,,,
,&,,,&,&&&                  WATER.                  ,&&&,&,&,,
,&&,,&&&,,                                          ,&,,&&&&&,
,&,&,&,,&, TRAINS  GO  BY  DAY AND  BY NIGHT. ALONG ,&&,&,,,,&
&&&&&&&,&&      THE WAY, THERE IS INFORMATION       &&,&&&,,,&
,,,,,,,&&, SCATTERED, OFTEN PUT  ON  TOP  OF POLES, &,&&,,&,,&
&,,,,,,&,& TO BE INTERPRETED BY  THE TRAIN DRIVERS. &&&,&,&&,&
,&,,,,,&&& DIFFERENT  PARTS  OF  THE  RAILWAY  HAVE ,,,&&&&,&&
&&&,,,,&,,         DIFFERENT SPEED LIMITS.          ,,,&,,,&&,
&,,&,,,&&,                                          ,,,&&,,&,&
,&,&&,,&,& SOMETIMES, TRAINS HAVE TO  STOP AND WAIT &,,&,&,&&&
&&&&,&,&&& FOR  SOMETHING TO HAPPEN, FAR AWAY. THIS &&,&&&&&,,
&,,,&&&&,, IS  SIGNALED  BY RED  OR  GREEN  LIGHTS. &,&&,,,,&,
&&,,&,,,&,                                          ,&&,&,,,&&
,,&,&&,,&&                 &&&&&&&&                 &&,&&&,,&,
,,&&&,&,&,                                          &,&&,,&,&&
&,&,,&&&&& MANY PEOPLE FOLLOW  THE  RAILS BY  FOOT. &&&,&,&&&,
&&&&,&,,,, OFTEN  THIS  PROVES  TO  BE THE  SHORTER &,,&&&&,,&
,,,,&&&,,, PATH BETWEEN  TWO POINTS.  HOWEVER  THIS &&,&,,,&,&
&,,,&,,&,, IS  FROWNED   UPON,  AND  VERY  IMPOLITE ,,&&&,,&&&
,&,,&&,&&,         TOWARD THE TRAIN DRIVERS!        &,&,,&,&,,
,&&,&,&&,&                                          ,&&&,&&&&,
,&,&&&&,&&                                          ,&,,&&,,,&
&&&&,,,&&,                                          ,&&,&,&,,&
,,,,&,,&,&                                          ,&,&&&&&,&
&,,,&&,&&&                                          ,&&&,,,,&&
,&,,&,&&,,                                          &&,,&,,,&,