• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

    • Tag FS2020 specific questions with the MSFS2020 tag.
    • Questions about making 3D assets can be posted in the 3D asset design forum. Either post them in the subforum of the modelling tool you use or in the general forum if they are general.
    • Questions about aircraft design can be posted in the Aircraft design forum
    • Questions about airport design can be posted in the FS2020 airport design forum. Once airport development tools have been updated for FS2020 you can post tool speciifc questions in the subforums of those tools as well of course.
    • Questions about terrain design can be posted in the FS2020 terrain design forum.
    • Questions about SimConnect can be posted in the SimConnect forum.

    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

FS2004 Trigger Spots for Regeneration of AI Traffic

Are there geographical areas in FS9 that trigger the regeneration of AI Traffic? If so, is there a way of identifying these areas and changing them?



Resource contributor
I do get occasional reloads of AI traffic as I fly, but they do not seem to be consistent. I would assume these are at sector borders, since when you compile AI traffic BGL files the compiler creates a table of what sector the plane should exist in at what moment in time. AFAIK these sector boundaries are fixed and cannot be changed.
Thanks Tom. That was my suspicion too because I think I found one of those sector borders close to a scenery that I am working on. It was my understanding (perhaps falsely) that time zones cause AI traffic to regenerate. I read somewhere years ago that prime meridians are also a trigger. Obviously the regeneration of AI isn't noticeable unless you have lots of traffic, which would cause a strain on the system if it is re-loaded all at once. Can I assume that even if I set my traffic at say 10% at this border a strain can be put on the system if there are hundreds of traffic files for the compiler to go through to create a table to determine what traffic to draw?



Resource contributor
Your computer is only actually ‘flying’ the AI aircraft that are in an ‘AI active zone’ around your current location, so it may only have to deal with a few dozen aircraft that are in that zone at any given time, although this can exceed 100 in dense traffic areas. The rest of the AI flights are not activated unless their flight paths cross into this zone, or you move and push the zone over their projected flight paths. When an AI aircraft leaves this zone it is essentially ‘extinguished’.

FS divides the world into a grid of sectors, approximately 40 mile rectangles. The traffic file contains a massive matrix that specifies exactly which flights are supposed to be in each sector at any given time. The AI active zone consists of the sector you are currently in and the sectors on all adjacent sides, for a block of nine sectors. The program only flies the AI traffic in those nine sectors (an approximately 120 mile rectangle).
http://stuff4fs.com/Applications/AIFP/TTools User Manual.htm