[Tagging] change recommendation from "depth" to "length" for the adit length?

[Martin Koppenhoefer]

sent from a phone

> On 15. May 2017, at 15:40, Zecke <zecke at historic.place> wrote:
> 
> So I would be very reluctant to re-defining the established OSM tagging here.


how would you tag the adit then? (I'm asking for the feature that is described in the wiki: a horizontal or almost horizontal tunnel going into the underground)


cheers,
Martin