I received an email saying that PHX Terminal 4 now has CLEAR service (for quicker TSA airport security), with Terminals 2 and 3 scheduled to get CLEAR by later this summer. Can anyone tell me which major airlines use which terminals? I assume that terminals aren't connected airside.

Also, has the road construction at PHX been completed? Vehicle traffic was a total mess the last time I was there (maybe two years ago). What's the current setup for major rental car agencies? Are cars in the garage (near Terminals 2-3?) or are shuttle buses to the rental lots used here?