timetable for 53 teachers and 550 students-success

[Liviu Lalescu]

hi all,
tomorrow we are starting the school year with the timetables generated with FET 5.6.2 (I didn't use the last version because I didn't want to show the not-available crosses -x-

The timetables have come up 100% normative compliant and 98% teachers' wishes respected. It was a very difficult timetable with many subjects with different teachers and groups, and space constraints, etc

Thanks very much for your work and for sharing it.

I modified a bit your data file: I changed weights of all min n days constraints to 100% and made min days between activities = 2 for all constraints with 2 activities. I obtained a much better timetable, with say hours of Sports on Monday and Wednesday, not on Monday and Tuesday. Why didn't you do that also?

[silvia]

first off, the sports teachers do not care if they have n days between activities with the same group, they only want their classe not to overlap more than 2 sports teachers at the time. besides, i do need some gaps in timetables for 2 reasons:

1- teachers have a number of lessons a week, and a number of hours they have to be present at school. if i don't give them any gaps, they will feel horrible if they have to stay longer after classes. it's less painful if they have gaps

2- I need to give 3 additional hours to each teacher for substitutions. I need 4 available teachers during all the hours when students are at school. these teachers will only be there, and go to a classroom if some teacher is ill, or needs help.

I hope this explains your doubts. The law is very strict on those subjects over here  

[Liviu Lalescu]

Yes, but I meant for all subject with 2 lessons per week, like English, or French, or other subjects. It is better if they are 2 days apart from each other, like on Tue-Thu, rather than being on consecutive days.