But what I actually mean, is that urinals are space efficient, and speed people through the facility quite a bit by allowing a greater load

Well yeah, if you have urinal space then its obviously more efficient. That's why I said it the way I did in the first place.

I was talking about places like restaurants and smaller government buildings where right now both genders have a restroom that is a toilet and a sink. There is functionally no difference between the two beyond the sign. Which means the sign is causing traffic buildup because in a lot of places there will be X more of this gender than the other meaning unnecessary wait lines for one while the other is open. BBQ joint women's rooms see far less use, while "staff offices" see far less men usage for an example I see regularly.