TOR Rostering

1.What is your role?(Required.)
2.If anything, what about the current rostering practices are of concern to you?
3.If you are of the view there is not enough of a break between a block of a night shifts and commencing the next shift.  What rest period do you believe will help manage fatigue?
4.On average how much overtime would you work every roster cycle (2 weeks)
5.How often does your roster change each roster cycle?