Patent ID: 8538689

Claim:
A non-transitory computer readable medium having stored therein map data in which a road is presented in units of links and a multilink is defined as a plurality of links, which have an identical attribute and are consecutively arranged in an order in the multilink, the map data comprising: a multilink information list storing a plurality of multilink information elements in a plurality of predetermined fixed lengths, one multilink information element indicating a number of links arranged within one multilink, wherein the plurality of multilink information elements are arrayed in the multilink information list in an order that is defined as a multilink list storage order; a link information list storing a plurality of link information elements in a plurality of predetermined fixed lengths, one link information element indicating a number of coordinate points arranged within one link to illustrate a shape of the one link, wherein the plurality of link information elements are arrayed in the link information list in an order that is defined as a link list storage order, wherein under the link list storage order, (i) a plurality of link information elements are respectively corresponded to by a plurality of links arranged in one multilink, the plurality of link information elements being arrayed in an order in which the corresponding links are consecutively arranged in the one multilink, wherein the plurality of link information elements with respect to the one multilink are respectively corresponded to by a multilink information element and defined as a link information element group with respect to one multilink, and (ii) a plurality of link information element groups are respectively corresponded to by a plurality of multilink link information elements, the plurality of link information element groups being arrayed in an order in which the corresponding multilink information elements are arrayed in the multilink information list; and a real data list storing a plurality of real data elements, which are respectively corresponded to by a plurality of link information elements, wherein the plurality of real data elements are arrayed in an order in which the corresponding link information elements are arrayed in the link information list.