主权项 |
1. A navigation system capable of acquiring a first required time period and a second required time period, wherein the first required time period is a time period required for a first movable body to arrive at a second point from a first point via a first route and the second required time period is a time period required for a second movable body moving along a second route different from the first movable body to arrive at the second point from the first point, the navigation system comprising:
a storage section, which stores information indicating respective movement characteristics of the first movable body and the second movable body, wherein the information is defined in advance and the movement characteristics are classified by one or more factors that affect an arrival time when the first movable body and the second movable body travel an identical route; a movement characteristic information acquiring section configured to acquire the information indicating the movement characteristics of the first movable body and the information indicating the movement characteristics of the second movable body from the storage section; and a required time calculator, which calculates a third required time period which is a virtually required time period when the first movable body is assumed to arrive at the second point after movement the second route, which is different from the first route, along which the first movable body actually has moved, wherein
the second movable body, which has passed through the first point as in the case of the first movable body, is one or more second movable bodies,the required time calculator is configured to preferentially acquire position information from the second movable body having the information indicating a movement characteristic similar to the information indicating the movement characteristic of the first movable body from among the one or more second movable bodies, andthe required time calculator is configured to calculate the third required time period using the acquired position information. |