Tågningsdörrarna

Tågningsdörrarna refers to a class of exterior and interior doors used on Swedish railway rolling stock, primarily in passenger coaches, described in regional manuals and older railway histories as a system of controlled access between cars and to the vestibules. The term is relatively obscure; in most contemporary sources the more common term is tågdörrar or dörrar in carriage blocks, but tågningsdörrarna appears in certain regional archives and preservation collections, where it denotes doors with integrated safety interlocks designed for high-speed travel and rapid opening for evacuation.

The etymology traces to tåg, train, and dörrar, doors, with an inflected form -ning used in some dialects or archivist spellings. The concept encompasses both hinged and sliding door leafs, often grouped in pairs to form cross-connecting portals between cars. In operation they are part of a centralized door system that coordinates locking, traction power de-energization, and interlocks with the braking system to ensure doors cannot be opened while the train is moving.

In terms of safety, tågningsdörrarna incorporate presence sensors, emergency release mechanisms, audible/visual alerts, and mechanical overrides for maintenance. Variants include anti-closing features for the vestibule areas and compatibility with platform screen doors on certain metro-adapter configurations. Modern trains largely replaced older installations, but the term persists in historic documentation and museum references as a descriptor for a traditional door architecture in Swedish rolling stock.