[Tagging] Footways where pedestrians may only walk in one direction: oneway:foot=yes or foot:backward=no?

[Paul Allen]

On Thu, 16 Apr 2020 at 12:50, Andrew Harvey <andrew.harvey4 at gmail.com>
wrote:

> But on a highway=footway,cycleway,path you can't drive a vehicle, so in
> those cases if there is a oneway=yes it's fair to assume it applies to all
> modes of transport on that way, unless otherwise indicated. Sure you can
> add oneway:foot=yes if you like, but oneway=yes should be interpreted as
> the same on a highway=footway.
>

You could interpret things that way, but there's an implicit conditional in
there
that has to be evaluated by routers and mappers.  If highway=footpath then
oneway applies to pedestrians else it applies to vehicles.  It means that
if you ever have to map a road where both vehicles and pedestrians are
oneway but in opposite directions, you can't.

It's a lot cleaner to have separate tags.  No messy conditionals.  No
problems with
rare use cases.

-- 
Paul
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