docs: @Pure
  	public static boolean getPreferredRoadInternDrawing() {
  		final Preferences prefs = Preferences.userNodeForPackage(RoadNetworkLayerConstants.class);
  		if (prefs != null) {
  			return prefs.getBoolean("ROAD_INTERN_DRAWING", DEFAULT_ROAD_INTERN_DRAWING); //$NON-NLS-1$
  		}
  		return DEFAULT_ROAD_INTERN_DRAWING;
  	}