Note: On many occasions when I try to level the road segments (CTRL + V), it causes a subsidence of the ground along the entire road. This is a problem and it discourages you from trying to fix something, because in the end there is a break in the road and complications begin, and it affects objects that disappear from the scene (houses, objects, trees, except for smoke). All these houses that we see in this video disappeared suddenly, I had to delete transparent objects and enter another executable to be able to recover all those houses. a huge scare, because the work almost falls apart.