To escape unmanned carrier dead lock generated at the time of setting one part of a traveling path as a traveling prohibiting block.
When a traveling prohibiting block is set, a station in the prohibiting block is masked on a shunting control table (S102), and this is changed to the shunting control table. Then, a station being the destination of shunting is retrieved for the combination of an unmanned carrier stop station to be shunted and an unmanned carrier stop station waiting for the permission of traveling from the shunting control table, and when the destination of shunting is present, the shunting is executed. Also, the unmanned carrier stop station to be shunted No is replaced with the unmanned carrier stop station waiting for the permission of traveling No (S105), the shunting control table is retrieved, and the destination of shunting is retrieved.
HAMADA TOYOHIDE
ISHII TAKATOSHI
KOBAYASHI YOSHIAKI
SHIMIZU MICHIYUKI
