In this short video I'll show you how the road exit/intersection can be created without using any prefab. This is useful when you for example aren't able to find a prefab you need or just need a road exit to be at a specific angle... I don't recommend you to use this technique on bigger intersections since you will need to use trajectories to make the AI cars use the intersection which can lead to AI doing weird stuff if there's too much trajectories.
Enjoy :)
Wafliman