How can i repeat or loop through terrain?

Sorry for the newbie question, but im building a terrain which is long open road with trees
And have an character run through it by using character controller, but i don’t want the road to end until
The player collides with something and its game over. And was wondering how can i repeat the terrain i build constantly. (ps.
The character runs automatically without user input, the user changes direction). Thanks

you could add an invisible wall that isTrigger and have a script on the character controller that tells it when you hit this invisible wall that it needs to respawn a few feet/meters back so it is continues and goes on forever. It saves processor time im sure.