[Talk-us-massachusetts] boardwalks, duck boards and footbridges

[Peter Dobratz]

Hi Marc,

Trails are typically captured using Ways tagged highway=path or
highway=footway.  To map a simple bridge, just split the Way object for the
trail at the beginning and end of the bridge and add bridge=yes and layer=1.

The Way object for the bridge does not connect to the feature underneath
(stream, road, etc).  All map features have an implied layer=0 unless
otherwise specified.  If you had a bridge on top of another bridge, you
would use layer=2 and layer=1 for the bridges respectively.

Here's a simple example of a bridge:

http://www.openstreetmap.org/way/168805432

Note: for larger bridges, there is the man_made=bridge tag that can be used
in addition on an area in addition to the above tagging, but I think that's
overkill for simple bridges on trails

http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dbridge

Also see the man_made=pier tag for piers:

http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dpier

Peter


On Fri, Dec 15, 2017 at 9:45 AM, Marc Sevigny <marc.sevigny at gmail.com>
wrote:

> Are any of you putting bridges on trails?  It seems useful under a number
> of circumstances (snowmobiles, horses, etc).
>
> If so, how do you get started?  I'd like to copy an example.  I tried
> creating an area and tagging that, but it doesn't get rendered as a bridge
> despite the tags.
>
> http://wiki.openstreetmap.org/wiki/Key:bridge
>
>
>
>
>
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