Towerform

They live their lives in the Towerway, often spending their whole lives living in the tower. They are a smaller population, but spread far and wide, an integral part of the Humane safety.
They offer the tower lights for safety, Health Quarters and markets selling food and Foglight Frames to keep travelers safe along the rails. They communicate with the Bridge Stonehouses, supplying their small markets and larger Maincity markets.
While they don't look down upon the Humane that live in Maincities, they don't look fondly on Towerform that trade their tall towers for the maincities. They rely on the Bridge Carriages and Dust Crossers to send shipments to Maincities, and rarely set foot into a Maincities of their own accord. More often its seen Towerform take a carriage ride past a maincities, and not board until the next Towerway. They usually sleep in the carriage parked inside of the station itself.