“These are full shifts divided into two distinct parts with a gap of several hours in between. Used in industries where peak demands are met at different times of the day e.g. catering, passenger transport and service industries” (Hurrell, 2003, no page).
Hurrell, K. (2003, March). Statistics on shiftwork: Survey questions, definitions and classifications. Retrieved August 3, 2005, from http://www.iwh.on.ca/media/images/Shiftwork.pdf