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