The system recommends, to a driver of the vehicle, an available traffic route that has a highest estimated potential demand among {HEAD ~ a plurality} of {TAIL ~ the available traffic routes} 
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The system recommends , to a driver of the vehicle , an available traffic route that has a highest estimated potential demand among { HEAD ~ a plurality } of { TAIL ~ the available traffic routes }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL