The present invention detects major changes in a road network on the basis of probe information. Probe information from a plurality of probe cars (10) is tabulated daily, and the change in the amount of traffic is calculated for each road on a daily basis....

The present invention accurately determines transit regulations on the basis of probe information. The transit trajectory from a plurality of probe cars (10) is accumulated as probe information, and an analysis terminal (200) determines whether or not tran...