If morale in bandit's camp is lower than 25 then bandits are not appearing in town and they start attacking on the track again.
It's at 100 for me atm. The only time bandits appear on the road is to get a happy ending from my character.
Morale. You can see it when you are on the Bandit Camp area and you check the description of the place on the main map.
Attitude you can see from the profile screen is something else.