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SB-0050

Place / EnvironmentPlacesMemory & Culture
SmellBook editorialCULTURALRevision 2

Subway / Metro

Also known as Underground · Metro

An urban transit smell identity combining metal, dust, warm machinery, air movement and human activity.

metallicdustyurbanindustrial
ATLAS POSITION050 / 200
MILESTONEIconic 100
PRIMARY CATEGORYPlaces
PUBLIC TYPEPlace / Environment
PROFILE STATUScomplete
COLORTunnel greyTEXTUREMetal and concreteSOUNDTrain brakingTEMPERATUREWarm
CULTURAL3associations / context
EXPERIMENTAL2nearby / prototype structure
VERIFIED0published source-backed claims
Source registry ↗
01SENSORY ASSOCIATIONSCULTURAL
Color
Tunnel grey
Texture
Metal and concrete
Temperature
Warm
Sound
Train braking
02FEELS LIKECULTURAL
movementcityintensity

Associations can vary strongly by person, place and culture.

03CONTEXTCULTURAL
underground platformtrain tunnelstation concourse
05SCIENCE & SOURCESEXPERIMENTAL
No VERIFIED scientific claim is attached to this early profile yet.

SmellBook will add citations claim-by-claim when reliable sources are available. Cultural associations and prototype relationships remain labeled separately.

Read the public methodology ↗Open source registry ↗

WHERE THIS SMELL APPEARS

One profile can belong to many routes.

These links are editorial navigation across the public atlas—not live graph scores.

PROFILE NOTE

Metro systems vary greatly; this is an editorial urban-environment profile rather than a universal transit smell.

EDITORIAL REVISIONRevision 2

Added public aliases and connected atlas metadata.

Created 2026-09-22 · Updated 2026-09-22

EVIDENCE MATTERS

A profile can contain different kinds of knowledge.

SmellBook separates cultural association, community perception, verified evidence, prediction and experimental relationships rather than presenting them as the same thing. Read the evidence guide ↗ See evidence coverage ↗