MAN Runway 23L-05R
Just to clarify. There is a restriction, a planning condition, on the use of 23L-05R at MAN. It shall not be used between the hours of 22.00 - 06:00. It can be used however in the case of emergencies, maintenance and emergency maintenance.
Just to add thoughts. In snow and ice, it makes sense to keep the snow fleet occupied on keeping one runway and the ramp available.