The restroom situation

There is like 2000+ students but only 3 restrooms, and to add pain to injury, are small, and for many classrooms, a long distance too. This is due to the fact 3 restrooms(+the one in the gym) were designed when this school was first built, explaining why they are so accessible for the B building but not anywhere else, yet with the addition of more buildings and more students, we are still using the same restrooms. On the other hand, the restroom maintenance is concerning, every once in a while one gets shut down, doors locks are broken and toilet paper/soap is always on short supply. Is there a solution?