" Construction for Hylan’s new subway lines coincided with a booming New York City economy. Skyscrapers were rising in Midtown Manhattan, while new apartment buildings and single-family homes sprouted up near subway stations all across the city. In the 1920s, one out of every five new apartments and homes in the entire country was built in New York City. "

― , Last Subway: The Long Wait for the Next Train in New York City