NEW : Full service expected to be restored Sunday morning , rail authority says . The order calls for the creation of a Presidential Emergency Board to mediate the differences between the workers and the Southeastern Pennsylvania Transportation Authority , putting the roughly 450 employees back to work on Sunday morning . Obama signs an executive order to create a board to resolve dispute . Strike affected 13 lines serving the suburbs , Philadelphia International Airport . Comment:
NEW : Full service expected to be restored Sunday morning , rail authority says . Obama signs an executive order to create a board to resolve dispute . Strike affected 13 lines serving the suburbs , Philadelphia International Airport . Comment: