[Tagging] Feature Proposal - RFC - 3rd and 4th rail

Paul Allen pla16021 at gmail.com
Tue Jun 9 12:32:01 UTC 2020

On Tue, 9 Jun 2020 at 09:16, Garry Keenor <garry.keenor at gmail.com> wrote:

> https://wiki.openstreetmap.org/wiki/Proposed_features/3rd_and_4th_rail
> Definition: A track electrified with a 4th rail system, with two
> additional rails on insulators and two shoe pickup by the train, and
> traction current returning via one of the insulated rails

Discouraging electrified=yes seems too harsh.  Suggesting that more detail
be given if it is possible for the mapper to ascertain it is one thing.
Discouraging electrified=yes may result in some lines not
being mapped as electrified.  It is preferable to define it more closely
if possible, but electrified=yes is preferable to not mapping it as
being electrified because the mapper cannot ascertain which system
is in use.

Yes, a passenger ought to have the opportunity to ascertain this in
most cases, but armchair mappers do not.  They can determine
from operator web sites that the line runs electric trains but not
the type of electrification.

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