koridor

Koridor is a term used in Indonesian and Malay to denote a long passage inside a building that connects rooms, stairs, elevators, and other spaces. It functions as an interior route for circulation and access, typically bounded by walls and doors on either side. The word is a loanword from the Dutch or English word corridor.

In architectural and construction contexts, koridor is common in homes, offices, schools, hospitals, hotels, and other public buildings. It is distinguished from related terms such as lorong (an outdoor or exterior passage, often narrower) and other features like tangga (stairs) or galeri (gallery).

Design and safety considerations for koridor include width, headroom, lighting, acoustics, accessibility, and fire protection. Corridors should allow unobstructed egress, include emergency lighting and wayfinding signage, and maintain clear sightlines for safety. Where required by local codes, accessibility features such as ramps or handrails, appropriate turning radii, and fire-rated walls and doors are incorporated to compartmentalize and protect the building.

Beyond building interiors, the term koridor is also used in urban planning and policy to describe transport or economic corridors that connect districts or regions. Such koridor designations refer to planned routes for roads or rail, or zones along a transportation axis intended to support growth, development, and improved accessibility.