Lock timetable conditionally

If you lock the timetable conditionally, the next optimisation run will skip the placement run and only carry out a swap run. This means that the resulting timetable will be very similar to the previous one. This constitutes an even higher level of similarity than the highest similarity settingof the previous input field (4 = great similarity).

If you have checked the box 'Lock timetable conditionally' and increase at the same time the percentage under '% of periods to be scheduled', the software proceeds by first locking the previous timetable, then scheduling the remaining periods and finally carrying out a swap optimisation run for all the periods.