[Tagging] Do we map pedestrian crossings twice?

Clifford Snow clifford at snowandsnow.us
Wed Jun 10 18:26:50 UTC 2020


On Wed, Jun 10, 2020 at 10:59 AM Jack Armstrong <jacknstacy at sprynet.com>
wrote:

> > From: Clifford Snow
>
> > Before changing the wiki, I'd like a clearer understanding of your
> proposed change. As I read this the node is placed on the highway to tell
> cars that some type of crossing is located at this node. The crossing way
> tells the pedestrian that there is some type of crossing.  With thousands
> of crossings already mapped, your proposed change could break routers.
>
>
>
>
> Well, I don’t really want to change anything. I’d just like the wiki to be
> consistent with OSM canon. I would have the wiki reflect the approved
> "Sidewalk as a separate way" 2011 proposal. Essentially, the wiki’s “How to
> Map” section would have added clarity;
>
>
> To be added to the wiki (from the approved proposal):
>
>
> When a highway=crossing node is present on the main road, a way connecting
> the sidewalks on the two sides of the road should be mapped. This way
> should be tagged as follows:
>
> highway=footway
>
> footway=crossing
>
>
> To be deleted from the wiki:
>
>
> footway=crossing and cycleway=crossing are sometimes used on ways which
> lead from a sidewalk to the crossing node (the node which has this
> highway=crossing tag). This is not the preferred way of tagging.
>
>
> On a personal note, I don’t want to map one element twice (once on the way
> and once on the node - for a single crossing), but the approved proposal
> contradicts my personal method of mapping. I feel that the tagged node
> tells both vehicles and pedestrians this is a crossing, but the wiki should
> be consistent with what is approved by the OSM community.
>
To help me understand, below are three schemes for crossings. Which one(s)
best describe your suggested way of mapping.

1. Tagging both the crossing and a node on the highway.
https://mycloud.snowandsnow.us/index.php/s/YEFoYcTgR2gtW3j
2. With no crossing ways, just a node on the highway to mark the type of
crossing https://mycloud.snowandsnow.us/index.php/s/4ad5wLzMNcE3sNo
3. With just crossing ways and no node at the intersection of the crossing
and highway. https://mycloud.snowandsnow.us/index.php/s/tHF62pH5txPEX55

Best,
Clifford


-- 
@osm_washington
www.snowandsnow.us
OpenStreetMap: Maps with a human touch
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