def dist_to_travel(self):
        if route == []:
            return 0
        else:
            thing3 = GPS_Location.dist(current, route[0])  #the distance between current and the first location
            for i in len(route) - 1:
                test = 0
                thing3 += GPS_Location.dist(route[test], route[test + 1])
                test += 1