The system computes a plurality of {HEAD ~ available traffic routes} from {TAIL ~ the current location} to the destination location or to the destination region 
from
The system computes a plurality of { HEAD ~ available traffic routes } from { TAIL ~ the current location } to the destination location or to the destination region
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH