Depending on your definition, this actually is not peak performance.
Subways are.
Obviously, the tunnels are absurdly expensive, but nothing moves as many people as quickly around a city as a subway.
They’re also extremely reliable, meaning people are even more likely to actually use them, and their above-ground footprint is essentially zero.
Subways are for mobility (moving large numbers of people rapidly); trams are for access (getting you close to your destination). They complement each other and a well-designed city would have both.
STOP I can only get so erect
You’re going to make me write a cute green-urbania fiction of my self-insert walking around a beautiful city with parks everywhere and using the sub-rails to go far distances and then get on cute retro san francisco style over land trams to make my way to walk-only brick roads and then walk to some book store, the corners piled high with books, with books stacked outside the store under a cloth awning, owned by a wise old man of unclear nationality who spends his days reading the books he sells, who knows me well enough to offer a glass of tea.
😩