However, LAX is being redone, both terminal-by-terminal, and with a connector to transit and car rentals. One place to go for a summary is: https://www.lawa.org/en/connectinglax/lamp-news -- the current round of modernization is expected to be done by 2023.
The city of LA's population was about 3 million in 1984 and now it's about 4 million. The surrounding cities (which are often hard to distinguish from LA itself) have grown too. Road and freeway expansion have not kept pace. Car traffic has become far heavier.
In 1984, the events were spread all over the place. They'll probably do something similar in 2028.
Will people be able to drive their rental cars and take their Ubers in a timely manner to the drop-off points for these dispersed events?
Will the city and county governments and the MTA add public transport in an intelligent and sufficient way to eliminate the need or desire for large amounts of private transportation? (Answer: no)
https://la.curbed.com/2017/8/4/16098474/olympics-transit-fut...