Each of guided vehicles has {HEAD ~ an operating condition memory unit} for storing the total travel distance, the travel time, the number of travels, the number of errors at a stop position, and {TAIL ~ the number} of article transfers 
for storing
Each of guided vehicles has { HEAD ~ an operating condition memory unit } for storing the total travel distance , the travel time , the number of travels , the number of errors at a stop position , and { TAIL ~ the number } of article transfers
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH