ulkorenkaiden
Ulkorenkaiden is a concept in speculative urban design and worldbuilding that refers to the outer ring districts surrounding a central urban core. In fictional geographies it denotes a defined belt of settlements, neighborhoods, and infrastructures forming a secondary ring outside the city center.
Etymology: The term combines Finnish ulko ("outside, exterior") and renkaiden ("of the rings"), indicating its intended
Design features: Ulkorenkaiden zones are typically linked by radial and circumferential transit networks, include mixed-use zones,
In narrative usage: In science fiction and game lore, Ulkorenkaiden is used to explore tension between central