The COVID-19 lockdowns of last spring put a number of “cities that never sleep” to sleep overnight. On the transportation front, the ultimate symbol of this was the decision to end overnight subway service in New York for the first time since the subway opened in 1904 (“The Mobile City,” May 6, 2020). But now that the country is getting vaccinated at a rapid clip, many states and cities are moving just as quickly to lift all the restrictions imposed over a year ago. Among them: New York City, which will see 24-hour subway service return on May 19 as part of a coordinated three-state effort to resume business as usual, more or less, in the Big Apple.