docs: @Pure
  	public static RoadType getPreferredRoadType() {
  		final Preferences prefs = Preferences.userNodeForPackage(RoadNetworkConstants.class);
  		String name = null;
  		if (prefs != null) {
  			name = prefs.get("ROAD_TYPE", null); //$NON-NLS-1$
  		}
  		if (name != null) {
  			RoadType type;
  			try {
  				type = RoadType.valueOf(name);
  			} catch (Throwable exception) {
  				type = null;
  			}
  			if (type != null) {
  				return type;
  			}
  		}
  		return RoadType.OTHER;
  	}