TOPIC:

People sometimes ask me what the limit of what the script can do is;

This is very close to the limit size of towns in CB#02.

Growing this town much beyond 90K will require extensive re-doing of the network due to the train limit. The script itself doesn't really care. The only weird thing that happens is that because the town info window message becomes too long part of it gets cut off for very high town size.

So you 'kinda' have to guess what it needs.