[Talk-GB] Changing highway=ford to ford=yes.

Edward Catmur ecatmur at googlemail.com
Mon Jan 7 15:41:38 UTC 2019


On Mon, 7 Jan 2019, 13:56 David Woolley <forums at david-woolley.me.uk wrote:

> On 07/01/2019 12:37, Mike Baggaley wrote:
> > I think that if an intersecting highway and waterway are mapped just as
> lines, then these represent the full width of the highway and waterway and
> it is illogical to use a line or area to represent the ford. If either the
> highway or waterway is mapped as an area then I would expect the ford to be
> mapped both as a line across the area and also as a node at the
> intersection of the centre line. Only if both highway and waterway are
> mapped as areas would expect the ford to be mapped as an area (and also as
> a node at the intersection of the centre lines).
>
> I would say that it should not be mapped as a node on the centre line.
> If data consumers want that, they can infer it from the more detailed
> mapping.
>
> I would say that fords are conceptually quite similar to bridges and
> tunnels, and people don't generally map those as points.
>

However there is an intersection between two lines on the same level (the
centreline and the thalweg) which is suitable for tagging as a node. It's a
bit like mapping highway crossings. Or maybe railway level crossings - but
do we map those as a way or area yet?


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