As opposed to the main system designed to move only mail and small packages through the city, they provide transportation for heavier packages, using Pneumo Bots (television-looking devices with robotic arms and a speaker) running on lines parallel to some of the pneumatic tubes, entering and exiting places through small iris-shaped doors. They can be seen all over Fontaine's Department Store as part of the home delivery service offered to the clients.
They were later used for fast personal travel when children started crafting Air Grabbers from various common parts (including special hooks used by the Pneumo Bots) for their own joyriding. Fontaine's was also advertising Pneumo Turrets, a new kind of security device running on Pneumo Lines, for Summer 1959, though nothing indicates their release in Rapture since the store's closure and the nationalization of Fontaine's assets by the City Council.
Burial at Sea - Episode 1
- Main article: Burial at Sea - Episode 1
In this episode, Pneumo Lines act in the same fashion as Sky-Lines in BioShock Infinite. They are first seen operating on Market Street, and later on are seen inactive in some areas at Fontaine's (including the main building and Housewares), where they can be used by Booker with his Air Grabber for fast travel, shooting and to strike at enemies when landing on them.