Purpose: Used in girder input to indicate it is part of a Girder System Project. (The condition SYSTEM FORCES is automatically placed in girder input in Girder System Projects and must not be removed.)
--> Located in girder input in Girder System Projects
Indicates girder input is part of a Girder System Design Project or Girder System Rating Project, where loading data is given in the girder system input and the bridge is analyzed as a system of girders.