[Tagging] [RFC] Feature Proposal - Public Transport: Auditory Information

[Matija Nalis]

This proposal aims to establish multiple tags to gather different types of
auditory information that may be provided at a public transport stop and/or
platforms.

It is being discussed at:
https://wiki.openstreetmap.org/wiki/Proposed_features/Public_Transport:_Auditory_Information

[forwarding on Tagging ML for original author who is having list issues]

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