docs: public static boolean addPathToPath(RoadPath inside, RoadPath elements) {
  		RoadConnection first = elements.getFirstPoint();
  		RoadConnection last = elements.getLastPoint();
  		assert first != null;
  		assert last != null;
  		first = first.getWrappedRoadConnection();
  		last = last.getWrappedRoadConnection();
  		assert first != null;
  		assert last != null;
  
  		if (last.equals(inside.getLastPoint()) || last.equals(inside.getFirstPoint())) {
  			for (int i = elements.size() - 1; i >= 0; --i) {
  				if (!inside.add(elements.get(i))) {
  					return false;
  				}
  			}
  		} else {
  			for (final RoadSegment segment : elements) {
  				if (!inside.add(segment)) {
  					return false;
  				}
  			}
  		}
  		return true;
  	}