A method for assessing nicotine dependence, which involves measuring a whole blood, serum or platelet-rich plasma serotonin level and rating the whole blood, serum or platelet-rich plasma serotonin level on such a scale that the higher it is, the higher nicotine dependence is. At least the first vehicle is provided with a tracking arm structure for making it possible to track a guide element disposed in the area, such as for example a wire fencing. Both the first LISP router and the second LISP router are on the same subnet.