OPERATING METHOD OF ROAD GUIDING SYSTEM AND ROAD GUIDING MTEHOD OF PORTABLE DEVICE

摘要

An operating method of a route guidance system according to an embodiment of the present invention comprises a step of collecting traffic information around a portable device through the portable device; a step of delivering the traffic information collected from the portable device to a server; a step of updating route information based on the traffic information; and a step of feeding the updated route information back to the portable device from the server.