double-manned en · ADJ
Meanings
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(not-comparable) operated by two people.
... the sheer length of the lever frame means the SB [signal box] must be double-manned from 0600-2200 on weekdays and 0600-2000 on Saturdays.
2018, Rail, issue 857, July 18-July 31 2018, article on Severn Bridge Junction signal box at Shrewsbury