How i can use triggers in maps?

I was playing one of CrashHard maps yesterday when i found there are some trigger zones that changes AI driving like risk or speed.
Someone knows a thread where i can get some info about those triggers?

 

Look for lua trigger from this page:
https://wiki.beamng.com/Map_Creation_Megapage

Clicking WIKI at top toolbar of this forum gets you to old documentation that still has most of the stuff, while the new documentation has then some of the new stuff which might not be at old documentation, so it is bit messy at the moment, but you should find most there and then check pinned threads at content creation section of the board there is some collection of links that help sometimes.

lua triggers beamng search for YT might also provide something, haven't looked myself, but often YT has tutorials how to get things done, problem is this game changes few times a year and old stuff can be off a bit, but still probably gives idea how to proceed.

 

Thanks!