Posted Feb 23 2018 - 08:44 PM
PTRACER (and all),
I have experienced similar problems with the AI at Pau, Rouen, and several other 1955 tracks. My theory is that the physics of the 55 mod contribute to the pile ups. The F1 and F2 cars from 1965 and forward are much lighter and have superior braking, cornering, and steering capabilities. These changes in physics gives the more modern AI better stopping, maneuvering, and avoidance abilities.
In order to test my theory I made a copy of drive55.ini and changed the aggression indices to 80% of their current value for each of the 19 AI drivers. I also increased the value of the alertness indices to 120% of their current values. The net result are 19 AIs that are less likely to take a questionable chance and much more likely to avoid a problem that occurs in front of them. In general the AI racing in the 1955 F1 Mod is better and the probability of finishing a race seems to improve significantly.
This is a very easy change to initiate and to unwind if you do not like the results. If you have loaded the 1955 race specific car sets you will have to change the driv55.ini for each race specific track; I would make these changes on a track specific basis ... some tracks are more prone to pileups than others. Fast straits leading into very tight corners seem to be a particular problem in regards to AI pileups.
Some of the 1955 AIs are pretty slow, if you increase their speed through a lower Gem 2 AI value (1.00 is standard) or an increased dlong_speed_ adj_coef (in the track55.ini files) you will increase the probability of AI crashes. Directly adjusting the NPT_Override setting also effects the AI crash avoidance behavior. The modified driv55.ini also helps in these situations.
I hope these suggestions are of use to some of you ... it has helped me better enjoy the fabulous 1955 F1 Mod.