The issue of urinals is creating somewhat of a conundrum for many unisex public toilet designers. In many public toilets, the widespread use of urinals for males means that there are more opportunities to meet their needs. There are often queues in front of the toilet rooms for females but not in front of the toilet rooms for males. While toilets are usually located in cubicles with lockable doors, urinals are usually installed freely in rows in sex-separated toilet rooms. This construction leads to a smaller space consumption and thus to more possibilities for water-efficient urination, while promoting more sanitary restroom conditions for men/boys at work/school and elsewhere.