@staticmethod
def is_same_road(lane_index_1, lane_index_2, same_lane=False):
    """
            Is lane 1 in the same road as lane 2?
        """
    return lane_index_1[:2] == lane_index_2[:2] and (not same_lane or 
        lane_index_1[2] == lane_index_2[2])
