Comment by socalgal2

Then there's the even better alternate universe. Japan, where there are ~100 train companies, almost all of them are private. There are at least 10 in Tokyo, all but one are private. They are setup so that they have a positive feedback loop. Each train company owns land at and around the trains stops. They open office buildings, apartments, groceries stores and shopping centers around those stops. The more people ride their trains, the better their other businesses do. The more compelling their other businesses are, the more people want to ride their trains to get to them. The also often run buses so you can take a bus to their stations.

These means the trains constantly improve and there's no poltitians trying to cut funding or under budgetting. The 10 companies in Tokyo I can name are JR East, Eiden, Toei, Tokyu, Seibu, Tobu, Odakyu, Keio, Keikyu, Keisei. There are actually more but they generally run 1 line each, at least at the moment.

Of those, only Toei (4 lines) are run by the government. Eiden (the Tokyo Subway) is private but gets some goverment backing. The others are all private. JR East was public in the 70s. The other 7 have always been private.

Unsurprisingly, only Toei, the government run one, is not setup with all of the positive feedback loops that keep the others going.

Note that it's similar in the Osaka/Kyoto/Kobe area. JR West and 5 other big companies, 3 subway companies, a bunch of other 1/2 line companies.

Another thing to note is, AFAICT, the population density of Kyoto is generally less than Los Angeles but they have great transporation from these private companies.

Conversely, the London Underground has had notorious underfunding issues.