[Imports] NYC building + address import - to merge or not to merge?

Martin Koppenhoefer dieterdreist at gmail.com
Tue Oct 15 13:50:51 UTC 2013

2013/10/15 Pieren <pieren3 at gmail.com>

> It's also harder to represent both on a map, excepted if you can go to
> high zoom levels.

you can't show housenumbers in low zoom levels anyway.

> When we place the housenumber on one side of the
> building, everyone is intuitively understanding that this side is
> where the main entrance (or mailbox) is.

the data is not only for rendering but also for other purposes. If you map
addresses as a point you will have to duplicate this address information on
all contained POIs and features, and you will not know about the extension
of the address (because you never know if addresses are mapped completely).

> This is like in real world
> where the house number plate is rarely on the backyard or in the
> middle of the kitchen... Also the address tags on polygon works only
> for the simple "1 address for 1 building polygon" case. All other
> cases require anyway an alternative.

yes, if the address is not valid for the whole building you will have to
map the address to a different polygon, but this doesn't imply that mapping
it on a node is better. On the other hand if the address is describing an
entrance / a door it should be mapped on this entity (i.e. a point / line).
It all depends where the address is refering to in your surroundings.

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