This invention is of interest in the field of {TAIL ~ the guidance} of {HEAD ~ public transport road vehicles} by a rail 
This invention is of interest in the field of { TAIL ~ the guidance } of { HEAD ~ public transport road vehicles } by a rail
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH