this is the best sim i got but there is no single mode the make an AI traffic, why it will be the best for this game.
can somebody make it or tall me how to make it or tall me if there is a mode that i am not aware of thet do what i ask for.
thenks for all

There is no study related to the subject you mentioned. but @rubbel_31 shared a video about this on our server. There is a study that has been tried before but it was unsuccessful.

there is no tool or mode to make it happen?

There was a video about this study. If I find it I will post it here. But currently there is no add-on like traffic mode.