The problems with LAX can't actually be fixed:
LAX is too big
It is impossible to go between terminals after going through security
The freeways to get to LAX are too overcrowded, even during COVID and it is only going to get worse
LAX is poorly managed
It takes too long for your luggage to get to bag claim after you land
If you need assistance, you often wait hours at your terminal for assistance
There are many other issues, but these are a few.
agreed, I do have to say though in case some do not know that the terminals do connect after security the problem. This comes in handy if you have a long wait and want to use in other lounge that is not in your terminal.
The problem is how the transition form one terminal to the other is implemented. All terminals on north side of the airport 1 thru 3 are connected via shuttles. Those three terminals are also connected to Bradley terminal via shuttle but it is not clearly mark where shuttles drop offs are. They are located in some of the most obscure areas that require people to go down to runway levels.
Terminals 4,5,6,7,8 as well as Bradley are all connected via underground tunnels. taking these tunnels you just need to make sure you do not go the wrong way and end up in one of the luggage pick up areas outside of security. The tunnel in the Bradley terminal can be accessed on the second floor where the lounges are.
The problem is time, walking from one terminal to the other can take about 10 minutes unless you are a fast walker. The shuttles luckily are constantly arriving in terminal 1,2,3 and Bradley but can also be busy. The shuttles also use a pathway that crisscrosses them with arriving and departing planes so delays can happen.
LAX is just an old airport that needs a major facelift that encompasses more than just a monorail type system from a concentrated car rental area. They should remove all the day parking spots that fill up the parking structures in the middle of the airport. Make all parking there long term parking. The car loop around the airport would become a drop off only system and no more pick-up.
The biggest obstacle and congestion in the airport is for pick-up/arrivals. Make everyone take the monorail system to the new centralized hub. After you disembark and get your luggage people head outside and board the monorail to the centralized pick-up where Uber, taxi, Lyft and shuttle areas are available. The light rail lines are also available for direct transport to downtown LA and other stops along the way. The system is also going to be connected to the green line so that's a plus. as well as parking.
free 2 hour max parking area for pick available and a pick up car loop available that is being monitored for those that decide to park and wait. Basically move the arrival congested away from airport. This is done in several international airports and it works great. They split up the congestion to different directions forcing less cars to loop around airport terminals. Might take a bit of a learning curve but eventually people will learn.
The extra time it would take to get from the terminal to the new central location for arrivals would be dramatically less then standing on the curbside of the terminal waiting for the shuttle or family member to loop around multiple times only to be blocked by traffic and roadrage. All lanes backed up by the fact that the lanes lessen as you get closer to terminal 7 and 8 and people realize last minute they need to be on right lane to head a certain direction and then stop and block all others to merge thru