https://www.wnyc.org/story/paths-summer-of-hell/
https://www.fox5ny.com/news/nj-hoboken-path-train-station-closure-commute-labor-day
https://pix11.com/news/local-news/alternate-routes-during-multi-day-hoboken-path-station-closure/
https://en.wikipedia.org/wiki/PATH_(rail_system)#Route_operation
https://www.railway-technology.com/projects/ny-path/?cf-view
("The cars are 51 feet (16 m) long by 9.2 feet (2.8 m) wide, a smaller loading gauge compared to similar vehicles in the US, due to the restricted structure gauge through the tunnels under the Hudson River.")
("The PA5 cars are coupled and linked into consists up to 8 cars long, with conductors' controls on all cars and engineers' cabs on the "A" (driving) cars; trains on the Newark–World Trade Center line will be lengthened to 10 cars as part of the line's 2010s upgrades.") https://en.wikipedia.org/wiki/PATH_(rail_system)#Rolling_stock
So, there are some 510 foot long trains.
https://en.wikipedia.org/wiki/PATH_(rail_system)#Proposed_expansions
NJ-NY
