The London Underground announced today that in 2015 it will begin offering 24-hour subway service on weekends. By doing so, London joins an elite group of cities—Copenhagen, Berlin and New York—that offer all-night service options.
The expansion will only affect certain central London lines: the Central, Jubilee, Northern, Picadilly, and Victoria lines. Every day 3.5 million trips are taken on the Tube, with the lion’s share—around 73 percent—along these lines.
All night service of any type is a rarity on the metropolitan subway systems of the world. New York City's MTA is joined by Copenhagen’s driverless all-night Metro in offering true all-night, underground train service, while Berlin's U-bahn (Underground train) replaces its trains with buses for overnight service. Most major metropolitan transit systems, including those in Singapore, Boston, Tapei, Tokyo, Seoul, and Washington, D.C. shut down from 11:30 p.m. to midnight until 5 a.m. to 6 a.m.
This post originally appeared on Quartz, an Atlantic partner site.