16.  Rotate road shape
  •  Select road shape (Plane).  Object mode.
  • 3D View menu >> Object >> Transform >> Rotate
  • The road shape should be perpendicular to the road path
17.  Make Duplicates Real 
  • Select road shape.  Object mode.
  • 3D View menu >> Object >> Apply >> Make Duplicates Real
  • Make sure the shape of the track is correct before you make the duplicates real
18.  Join Duplicates together
  • Duplicates and original road shape selected
  • 3D View menu >> Object >> Join
  • When you made the duplicates real, it made each duplicate a separate object
  • We want join the duplicates together and make the track one object