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!