Research server 4 transmits to moving status search server 3 a request for
providing moving status information containing a conditional expression,
designating attributes of users to be researched. Moving status search
server 3 extracts users having user attribute information (information
such as address, occupation or the like, of each user) matching the
conditional expression and obtains location information from mobile
stations 1 which the users possess. In this way, moving status search
server 3 generates moving status information on the basis of location
information of users having user attribute information matching the
conditional expression, and transmits the generated moving status
information to research server 4.