roads are physical representations of   
 the lines  on maps  that tell you  where 
              you can travel.             
 those called  roads  are  for cars.  for 
 bikes they are  called paths, for trains 
          they are called rails.          
 when traveling by foot,  you can  follow 
          all of these, or none.          
    most roads are elevated, suspended    
 between  three  to  a   hundred   (rare) 
 meters above ground. the closer  you get 
 to a  city, the  more  intertwined  they 
 in   such  areas,  all   crossings   and 
 intersections are  placed in tunnels, or 
   special tower-like structures called   
 outposts, which enfold  the  roads where 
              they interact.              
 here  and there you will find symbols in 
 white,  on the asphalt. these  are meant 
 to   tell   the   drivers   about   what 
 manouvers  they  allowed to  perform  on 
     that particular stretch of road.     
 however, some creatures  paint their own 
   illicit symbols encoding territorial   
    claims, nearby resources, or other    
      unknown and mysterious things.