The method 1, wherein the computing {HEAD ~ a plurality} of {TAIL ~ available traffic routes} includes a step of: 
The method 1 , wherein the computing { HEAD ~ a plurality } of { TAIL ~ available traffic routes } includes a step of :
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH