GS: How many different types of responses do the pedestrians of San Andreas have when responding to events happening around them?

Gordon Yeoman: Each pedestrian's personality is reflected in his or her response to around 40 world events. Some of these events are relevant only to specific types of pedestrians, so a pedestrian's personality is typically formed by choosing responses to about 20 different events. A response to a specific event is decided by choosing randomly from a weighted distribution of up to six actions appropriate for that event. Six types of pedestrian personality are loaded from file and applied according to the pedestrian's model index: cop, gang member, fireman, weak, normal, and tough. Mission pedestrians can have their personalities individually edited in script.