The Emergence Machine

Metro

physical · transportation · Level 4 · E10

E10Institutions

Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.

Trace. Question. Emerge.

Emergence definition

A metro is a rapid transit system consisting of underground rail lines and stations serving urban areas, characterized by frequent and high-capacity transportation, but this definition lacks a clear understanding of mass transit.

Compare Metro with…

Wiktionary senses

External reference — all senses of the word “metro” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.

Loading senses…

Source: Wiktionary — “metro”. Content available under CC BY-SA 4.0.

Historical origin

Origin word
metropolitain
Origin language
fra

An underground urban railway system

Prerequisite chain

Possible path of this concept down to the fundamental substrate.

thisfoundationsL4L3L2L1L0MetroMass TransitMassMatterMotionQuantityEnergyPatternSpaceTimeE1 concrete → E14 abstract

Neighborhood

Direct prerequisites above, concepts that depend on this one below.

thisprerequisitesMetroL4Mass TransitL3E1 concrete → E14 abstract

In other languages

Prerequisites

What you need to understand first.

  • Mass Transit L3 (requires)
    mass transit is a core concept needed to understand metro