/**
* generates Hash from Start and Target Adress (Route Hashtable)
* coordinates as string together, since calculate sum from both bigInts
* would be the same ride from->to and to->from
* @return string
*/
public function getRideRouteHash()
{
return hash('md4', $this->startAddress->getHashFromBigIntCoordinates() . $this->targetAddress->getHashFromBigIntCoordinates());
}
