Popcycle.dat

Popcycle.dat controls the population makeup for each specific region of the map, e.g. business areas, entertainment zones, shopping zones and more.

Using higher values for the functions that start with "#" increases the amount of pedestrians and vehicles roaming, however this might use up more memory as the game needs to store more information about the pedestrians and vehicles spawning. These values are really for relative density between regions. Overall density is better controlled with the gameconfig or settings.xml.

While it is often said that the values for each type of ped or car need to add up to 100%, it has been observed that exceeding 100% will not necessarily break the game, but any total below 100% will cause the game to crash in that region.

At least in the PC version of GTA V, the value "PercCopCars" is never used by the game's .exe.