can simulator load a road that is more than 1km

[Mayuemei]

The road I generated may be longer than 1km. During loading the scene, BeamNG.tech displays:

Terrain Environment loaded 3 objects loaded 1km of the roads and 0.0km markings

So I wonder if the simulator can only load 1km of roads. If it can load longer roads, where do I need to modify the configuration to load longer roads?

Thank you.