why does the g train only have 4 cars
G (New York City Subway service) To increase service and reduce waiting time due to the 63rd Street Connector cutbacks, the G would need more trains, but there were not enough cars available in the system. The solution was to reduce the length of trains in order to increase service frequency.[19] Historically, the G line had run 8 60-foot (18 m) car trains or 6 75-foot (23 m) car trains; both were shorter than the typical 600-foot (180 m) length of B Division trains because ridership was deemed too low to justify running full-length G trains in frequent intervals.[19] Under the 2001 plan, trains were shortened from six 75-foot (23 m) cars to four, sticking all the leftover cars together to make the extra trains for the G, and the additional trains needed for V service.[19][39] Thus, G service now operates 300-foot (91 m) trains, half the length of normal B Division standards. It also operates One Person Train Operation (OPTO) service during late nights and weekends.[19]