Deleting Ai nodes

I'm new to World Editor and saw a post about deleting AI nodes 4 years ago.
And I've tried everything to actually make the roads that the AI shouldn't drive.
But the AI keeps driving down those roads and it's frustrating.
And I wanted to ask if anyone knows how to actually stop the AI from driving on roads I don't want them to.
(tried to edit Hirochi Raceway and Automation Racetrack nodes)

 

https://documentation.beamng.com/world_editor/tools/decalroad_editor/
No need to delete road nodes for that. Just set the decal road's drivability to -1 in the inspector window.

 

I already tried putting it on -1 but the ai just keept on driving on those roads anyway

 

Thanks Agent_Y, I forgot to mention. Save and restart the map. Usually pressing Ctrl+L after the AI changes also works.

 

i did and it just broke the ai

 

Broke it how? Laying new non AI roads should not affect the traffic. Changing the drivability on old roads can disrupt the AI routes so traffic cars may stop, turn around, drive off a cliff etc. Maybe some screenshots would help us understand what you are trying to do.

 

After you have hit CTRL + L you need to reset all your AI cars using CTRL + R (for every car)

 

You can reload all cars at once with SHIFT + CTRL + R, usually saves quite a bit of time.

 

it just decided to drive into a wall XD
--- Post updated ---
also thanks for helping me its all fixed now