Why are there no one-way highways?

[World_uate]

(DISCLAIMER:I wrote through a translator, I hope I translated it properly). Why on April 14, after the update, the one-way highway function disappeared, just the button was removed. Question: WHY? I REALLY NEED IT AS A ONE-WAY HIGHWAY.

[Khajnagari KH 09]

I don't know. I seriously never faced such a problem.