It might be better to replace those roads with other assets currently available on Workshop. To do this, use the RON mod

@Alysterwolf

It's been a couple years and it's very custom-asset heavy, it's just kind of an unfortunate reality but things get taken down sometimes.

I'd start by checking the asset collection here: https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2171016731

You might want to just try the map version without roads which you can find here: https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2170900232

If you really want to play with pre-built infrastructure...

I found the 2U Two-Line Turning Lane archived here: https://smods.ru/archives/68524
I can't comment on the safety of it or anything but that's ostensibly it.

I'm not sure offhand which the Basic Road Elevated0 was from but if you get me a load screen mod report I *might* be able to find it.

These assets is not on Workshop:
2U Two-Line Turning Lane
Basic Road Elevated0