That’s wild, that city is too big not to have a subway system. I’m guessing they just do above ground light rail. Traffic gotta be a nightmare. My top 3 are NYC, DC and the Bay Area. Chicago(I rode the L, seems like all their stations are elevated or ground level, may not go underground) gets honorable mention. LA, Atlanta and Miami(I don’t think Miami goes underground either for sea level reasons) need to work on their expansion, they don’t go far enough to the suburbs. Philly and Boston have legit systems too but I never spend time in those towns.