An automated warehouse comprising: an outside panel that forms an internal space and comprises a plurality of open/close doors (21A, 21B, 31A...33A, 31B...33B) that are able to open the internal space and which are provided with sensors to detect whether the doors (21A, 21B, 31A...33A, 31B...33B) are opened or closed; a single track; a plurality of housing shelves disposed in the internal space; a plurality of carriers (101, 102) in the form of stacker cranes for each carrying an article to one of said housing shelves and travel on said single track; an isolation region (301, 302) serving as a retreat destination, which is a predefined region of said single track, in which a carrier (101, 102) of said carriers (101, 102) can be placed to perform maintenance or the like on this carrier (101, 102), and which comprises at least some of said housing shelves; and a control device that controls the carriers (101, 102); wherein, if the control device receives an instruction to retreat a particular carrier (101, 102) which is one of the carriers (101, 102) and if said particular carrier (101, 102) is holding an article or if an article is housed in one of the housing shelves of said isolation region (301, 302), the control device causes the particular carrier (101, 102) to carry the article to another housing shelf to and from which a remaining carrier (102, 101) except for the particular carrier (101, 102), of the carriers (101, 102) is able to transfer an article so that all articles housed in the housing shelves of the isolation region (301, 302) have been carried to a housing shelf to and from which the remaining carrier (102, 101) is able to transfer an article, and then the control device causes the particular carrier (101, 102) to retreat, wherein after retreating the particular carrier (101, 102), the control device drives the remaining carrier (102, 101) within a range of the track except for the isolation region (301, 302), and when it is detected that an open/close door (21A, 21B, 31A...33A, 31B...33B) corresponding to the isolation region (301, 302), of the open/close doors (21A, 21B, 31A...33A, 31B...33B) has been opened, the control device continues to drive the remaining carrier (102, 101). an outside panel that forms an internal space and comprises a plurality of open/close doors (21A, 21B, 31A...33A, 31B...33B) that are able to open the internal space and which are provided with sensors to detect whether the doors (21A, 21B, 31A...33A, 31B...33B) are opened or closed; a single track; a plurality of housing shelves disposed in the internal space; a plurality of carriers (101, 102) in the form of stacker cranes for each carrying an article to one of said housing shelves and travel on said single track; an isolation region (301, 302) serving as a retreat destination, which is a predefined region of said single track, in which a carrier (101, 102) of said carriers (101, 102) can be placed to perform maintenance or the like on this carrier (101, 102), and which comprises at least some of said housing shelves; and a control device that controls the carriers (101, 102); wherein, if the control device receives an instruction to retreat a particular carrier (101, 102) which is one of the carriers (101, 102) and if said particular carrier (101, 102) is holding an article or if an article is housed in one of the housing shelves of said isolation region (301, 302), the control device causes the particular carrier (101, 102) to carry the article to another housing shelf to and from which a remaining carrier (102, 101) except for the particular carrier (101, 102), of the carriers (101, 102) is able to transfer an article so that all articles housed in the housing shelves of the isolation region (301, 302) have been carried to a housing shelf to and from which the remaining carrier (102, 101) is able to transfer an article, and then the control device causes the particular carrier (101, 102) to retreat, wherein after retreating the particular carrier (101, 102), the control device drives the remaining carrier (102, 101) within a range of the track except for the isolation region (301, 302), and when it is detected that an open/close door (21A, 21B, 31A...33A, 31B...33B) corresponding to the isolation region (301, 302), of the open/close doors (21A, 21B, 31A...33A, 31B...33B) has been opened, the control device continues to drive the remaining carrier (102, 101).