Abstract: An object of this invention is to provide an information processing technique in which consideration for snowily weak people, such as old people or handicapped people, in snow removal work is made in a suitable form. This information processing method includes the steps of: generating data (for example, priority patrol spot symbol □, snow clearing complaint spot symbol X, snow dumping complaint spot symbol &Dgr;) indicating the necessity of snow removal with a reason other than the snowily weak person based on position information of a registered snowily weak person; and transmitting map information (FIG. 18) including data indicating the necessity of the snow removal in response to the request from a terminal of a person relating to a snow removal plan. By doing so, it becomes possible to exhibit the necessity of the snow removal to the person relating to the snow removal plan without specifying the snowily weak person.