Navigation service method for providing unusable route information related to emergency area and server apparatus for the same

A server apparatus for providing route information related to an emergency area to a terminal that is capable of calculating a route, comprising:

• a communication unit for communicating with the terminal;
• and
• a control unit for providing traffic information for a route that is received from the terminal,
• wherein the control unit is configured to:
• construct an emergency area resource that includes unusable route information related to an emergency area;
• receive trip parameters from multiple applications and transmit a link, through which the emergency area resource is accessible, to an application, the trip parameter of which includes a request to provide unusable route information related to an emergency area;
• and
• transmit a link, through which a same emergency area resource is accessible, to applications that request provision of unusable route information related to a same emergency area, and
• wherein a user of the terminal is able to provide unusable route information to the emergency area resource for use by other terminals,
• wherein the emergency area resource includes information about a route expected to be unusable in a future,
• wherein the control unit transmits a notification message including an identifier of the information about the route expected to be unusable, when the route expected to be unusable becomes unusable, the identifier of the information about the route expected to be unusable used for updating the unusable route information by the terminal which receives the notification message.