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Safest Neighbourhoods in Tokyo (and Areas to Avoid)

Neighbourhood-by-neighbourhood walkability

FAQ

What is chikan and how do I avoid it?
Chikan (痴漢) is groping on packed commuter trains, the one documented exception to Japan's near-zero street-harassment record. It occurs during rush-hour crush (07:30-09:30 weekdays); off-hours risk is low. Defence: use the women-only carriage (front or rear of train on most lines during rush, clearly signed in English). If groped, shout 'chikan!' — bystanders will intervene per cultural norm; press the emergency intercom; police take prosecution seriously.
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Sources

Scores are the Kakapo Safety Index — compiled from government travel advisories and public crime, health and transit data. All data sources.