legenda

mmorning
aafternoon
nnight,
on day of start time
-off shift

examples 24-hour shift rosters

shell 2-2-2

motuwethfr sasu
1. m m a a n n -
2. - - - m m a a
3. n n - - - - m
4. m a a n n - -
5. - - m m a a n
6. n - - - - m m
7. a a n n - - -
8. - m m a a n n
9. - - - - m m a
10. a n n - - - -
 motuwethfr sasu
morning, m22222 22
afternoon, a22222 22
night, n22222 22
off, x44444 44

regular

  • designed by Shell.
  • suits a fixed workload
  • for 5, 10, 15, ... employees

33.6 h/w

  • average 33.6 work hours per week.
  • 2 staff in every shift with 10 employees
  • repeats after 10 weeks.

good

  • fast forward shift rotation
  • sufficient rest between shifts
  • 4 days off after night shifts

good

  • 2 nights cause minimum disturbance of biorhtythm
  • regular, repeats after 10 days

bad

  • waste saturday sleeping in line 4
  • only 2 weekends off in 10 weeks
  • always 6 days work

new shell roster

motuwethfr sasu
1. m m a a n - -
2. - - m m a n n
3. - - - - m a a
4. n n - - - m m
5. a a n n - - -
 madiwodovr zazo
morning, m11111 11
afternoon, a11111 11
night, n11111 11
off, -22222 22

regular

  • same staff level as the 2-2-2 roster
  • good for a fixed workload, just like the 2-2-2

5 teams

  • for 5 teams
  • or multiples of 5 employees
  • average 33.6 work hours per week

good

  • Shorter work weeks
  • Fast rotating forward
  • plenty of rest between shifts

good

  • at most 2 concesutive night shifts
  • cycle repeats after 5 weeks
  • long weekends off

bad

  • more tricky to memorise
  • single night shift at line 1 with Saturday wasted sleeping
  • sometimes only 3 days off after night shifts

BP 5 teams roster

madiwodovr zazo
1. m - - a a a a
2. - n n n - - -
3. - m m m m - -
4. a a a - n n n
5. n - - - - m m
 madiwodovr zazo
morning, m11111 11
afternoon, a11111 11
night, n11111 11
off, -22222 22

5 teams

  • for multiples of 5 employees
  • constant staff level
  • same shifts in a work week

long shift cycles

  • Some people appreciate the same shifts
  • Others prefer alternating shifts, e.g. for quality time with kids at home

good

  • 2 weekends off in 5 weeks
  • 1 long weekend
  • 4 days off after night shifts
  • at most 4 work days

bad

  • 3 - 4 night shifts disturb biorhythm
  • After evening shifts just one day off
  • less regular than the 2-2-2 roster.

3 teams cycle

motuwethfr sasu
1. - m m a a - -
2. m a a - - d d
3. a - - m m - -
 madiwodovr zazo
morning, m11111 --
day, d----- 11
afternoon, a11111 --
off, -11111 22

7 days/week

  • morning- and evening-shifts mo-fr
  • sa-su just day shifts
  • average 2 hours per week

good

  • 2, 3 or 4 work days
  • time for personal life between shifts
  • 2 out of 3 weekends off

bad

  • irregular work weeks of 2, 3 or 4 days

40 hours per week

motuwethfr sasu
1. - m m m m - -
2. a a n n n - -
3. d d d d - a a
4. n n - - d m m
5. m - a a a n -
 madiwodovr zazo
morning, m11111 11
Day, d11111 --
afternoon, a11111 11
night, n11111 1-
off, -11111 23

5d/w, 40h/w

  • mo-fr: morning-, day-, evening- and night shifts
  • sa: just morning, afternoon and night
  • su: just morning and afternoon

good

  • regular, 4 or 5 days work
  • alternating rhythm, time for personal life
  • 3 out of 5 sundays off

bad

  • broken weekend in line 5
  • 40 h/w is very tough in shift work
  • 2x short rest of just one day off

4 teams, 7x24

motuwethfr sasu
1. - - m m m d -
2. m m a a a - -
3. a a n n - - d
4. n n - - n L L
 madiwodovr zazo
morning, m11111 --
Day 12 hour shift, d----- 11
afternoon, a11111 --
night, n11111 --
Long night 12 hour shift, L----- 11
off, -11111 22

8, 12 hours

  • 7x24 with just 4 teams
  • mo-fr 8 hour shifts
  • sa-su long shifts, more off in weekend
  • thanks to Jamie Winton, Petroleum Industry, South Australia.

good

  • short work weeks 3, 4 or 5 dagen.
  • 1x per 4 weeks a weekend off
  • 2x per 4 weeks ½ weekend off

bad

  • violates Dutch labout law: night shifts and average of 42h/w
  • line five: 3 nights, of which 2 long

More about shift roster design

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