text: There is `only straight or right` turn restriction detected here, which applies to this service road that links the dual carriage primary way. It technically means a `no_left` or a `no_u_turn`. Can someone please verify whether this turn restriction is correct or not and add it if it is correct? 
  link to the map: http://mapbox.github.io/osm-navigation-map/#18.22/52.46293/13.32672/0.5
  Thanks! 