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Field sessions do not run over the break
No field session in the three weeks from 30 March. The room is locked and nobody is in it.
Started by Amos RedfernLecturer· week 6
0 replies
655 views
Last reply 30 Mar 2027 by Amos Redfern
Pinned.Announcements
Week 6, then the break, and what to do in it
The mid-semester break sits between week 6 and week 7. Your queue does not take a break and neither should your counts.
Started by Tessa VargaConvenor· week 6
1 reply
724 views
Last reply 30 Mar 2027 by Priya Raghunathan
Pinned.AnnouncementsAnswered
Field session 4 is a walk, dress for it
Week 4 visits four queues on foot. What to bring, what happens if it rains, and the seated alternative.
Started by Priya RaghunathanField session tutor· week 4
3 replies
268 views
Last reply 16 Mar 2027 by Priya Raghunathan
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Week 1, choose your queue by Wednesday
What makes a queue workable for this course, and the four ways a first choice usually fails.
Started by Tessa VargaConvenor· week 1
0 replies
412 views
Last reply 22 Feb 2027 by Tessa Varga
AssessmentAnswered
What does defending the redesign actually involve
Week 12 says you defend the change in front of the room. How long, what do I bring, and what are people allowed to ask?
Started by Tomas Rehak· week 12
3 replies
598 views
Last reply 26 May 2027 by Ada Okonjo
AssessmentAnswered
How big is The Redesign allowed to be
Can I propose hiring another person, or does the change have to be something the site could do on Monday with no money?
Started by Nell Abioye· week 11
3 replies
527 views
Last reply 20 May 2027 by Tessa Varga
Ethics
Week 10, and taking the written version
What the alternative to the week 10 lecture is actually like, from somebody who took it.
Started by Ada Okonjo· week 10
2 replies
194 views
Last reply 12 May 2027 by Nell Abioye
AssessmentAnswered
Does a missed journal week really score better than a reconstructed one
The brief says to write "week 6, missed" rather than make one up. Checking that is meant literally.
Started by Fen Mackereth· week 9
4 replies
358 views
Last reply 11 May 2027 by Ada Okonjo
EthicsAnswered
The clinic has a priority system and nobody explains it
People arrive after me and go in before me. There is a rule and it is not written anywhere a patient can read it.
Started by Ada Okonjo· week 9
3 replies
671 views
Last reply 10 May 2027 by Amos Redfern
ArithmeticAnswered
My mean is fine and my Tuesdays are awful
Average wait four minutes. Tuesday wait fourteen. The average is true and it is hiding the entire problem.
Started by Fen Mackereth· week 9
3 replies
483 views
Last reply 10 May 2027 by Marta Ilves
EthicsAnswered
Is it actually fine to count people who have not agreed to it
Nobody in my queue knows they are in my data. The consent procedure for week 8 made me wonder why the other eleven weeks do not have one.
Started by Tomas Rehak· week 8
5 replies
623 views
Last reply 4 May 2027 by Tomas Rehak
FieldworkAnswered
My site closed down in week 8
The cafe I have been counting since week 1 has shut for a refit. Six weeks of data and nowhere to stand.
Started by Ada Okonjo· week 8
3 replies
344 views
Last reply 3 May 2027 by Fen Mackereth
ArithmeticAnswered
Two tills, one line, and my arithmetic broke
The shop opened a second till halfway through my hour. My wait dropped by more than half, which I did not expect.
Started by Tomas Rehak· week 7
3 replies
389 views
Last reply 23 Apr 2027 by Marta Ilves
FieldworkAnswered
The shop has asked me to stop standing there
Week 6 and the site I have measured since week 1 has withdrawn access. What happens to the assessment.
Started by Nell Abioye· week 6
4 replies
289 views
Last reply 20 Apr 2027 by Tessa Varga
EthicsAnswered
Does somebody on their phone count as waiting
Half my queue is not looking at the queue. They are on their phones and they seem fine about it. Are they waiting the same amount as somebody staring at the counter?
Started by Fen Mackereth· week 5
2 replies
498 views
Last reply 29 Mar 2027 by Nell Abioye
AssessmentAnswered
Does the journal want prose or a table
The brief says record each visit. It does not say whether that is a paragraph, a table or both, and I have written it three ways.
Started by Ravi Sundaram· week 5
3 replies
612 views
Last reply 26 Mar 2027 by Tessa Varga
FieldworkAnswered
My queue turned out to be four queues
The pharmacy counter serves prescriptions, collections, consultations and retail from one line. Is that one queue or four?
Started by Ravi Sundaram· week 3
5 replies
331 views
Last reply 24 Mar 2027 by Ravi Sundaram
FieldworkAnswered
It rained and my queue behaved completely differently
Forty minutes of rain and the line outside the coffee cart collapsed. Do I throw the session out or is that a result?
Started by Ravi Sundaram· week 4
2 replies
356 views
Last reply 19 Mar 2027 by Nell Abioye
ArithmeticAnswered
How wide should my service time bins be
Thirty second bins make my histogram look flat. Five second bins make it look like noise. Is there a rule or is this taste?
Started by Tomas Rehak· week 4
2 replies
418 views
Last reply 18 Mar 2027 by Fen Mackereth
ArithmeticAnswered
My arrival rate changes every ten minutes
Little's Law wants one arrival rate. My queue has four, depending on what time I stand there. Which one goes in the formula?
Started by Nell Abioye· week 3
3 replies
556 views
Last reply 11 Mar 2027 by Marta Ilves
ArithmeticAnswered
Little's Law says forty minutes and that is obviously wrong
A count of twelve and an arrival rate of one every three minutes gives a wait nobody in the line is actually experiencing.
Started by Bea Lindqvist· week 2
4 replies
507 views
Last reply 5 Mar 2027 by Tomas Rehak
FieldworkAnswered
Stopwatch or phone, and does it matter
The phone is easier to hold and the stopwatch does not buzz. Is one of them going to wreck my numbers?
Started by Fen Mackereth· week 2
2 replies
302 views
Last reply 3 Mar 2027 by Amos Redfern
FieldworkAnswered
Where am I actually allowed to stand
The supermarket has a queue worth timing and a manager who keeps looking at me. What are the rules for standing there with a clipboard?
Started by Nell Abioye· week 1
3 replies
487 views
Last reply 1 Mar 2027 by Tomas Rehak
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0 replies
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