Instead of upgrading trams like St. Petersburg, Melbourne and most of Europe did, America scraped trams due to lobbying efforts of car companies to switch to shitty buses.

The Netherlands have amazing train and tram networks throughout their cities. It's not uncommon to see bicycles piled up and belted to the wall in the bike section of each train.

This makes no sense for local city traffic.

> in most cities it is unrealistic due to how little parking there is available

This is a problem with how American cities are designed. Ideally, one shouldn't need to own a car at all in a major city. In Manhattan, for example, it's ridiculous that the government (and therefore residents) subsidize cars by providing free street parking all over the island. Very, very few people who live there own a car. But I digress.

Have they considered replacing the parking lane with a bike lane instead of regular traffic?

> And, as others pointed out, in most cities it is unrealistic due to how little parking there is available.

That's purely a supply and demand issue--because of how cheap street parking is, the price of parking is very low and thus elevated parking garages are uneconomical. If only elevated parking is available, that changes.