IMHO, имеется в виду вахта
Сравните:
The long distances involved in getting to remote locations mean that workers cannot return home at the end of a shift and so they are rostered to stay at work for a set number of days before flying or driving home for a number of days....
....Rosters vary based on factors including the local amenity of the
surrounding region. A typical roster (known in the industry as a ‘swing’) is 14 days on, seven days off (‘14/7’), although companies operating in remote locations are also using shorter rosters (eg ‘7/7’) in an effort to improve employee satisfaction, performance and retention....
Вахтовый метод — особая форма осуществления трудового процесса вне места постоянного проживания работников, когда не может быть обеспечено ежедневное их возвращение к месту постоянного проживания.