[Tagging] Combining gas stations & convenience stores

Bryce Nesbitt bryce2 at obviously.com
Fri Dec 5 17:46:51 UTC 2014

On Fri, Dec 5, 2014 at 3:40 AM, Markus Lindholm <markus.lindholm at gmail.com>

> In general it is not sustainable to place address tags on
> area/building elements as there can be many addresses within such an
> element. You're not going to comma separate the different address
> values I hope.

It's also unsustainable to duplicate address elements on multiple POI's.
Among other problems there's a maintenance issue, where it's unlikely that
corrections will be applied to all the elements.

The two tagging approaches seem to be:

   - It's primarily a gas station, and it has attributes like store,
   restroom, water bottle filling station, wiper water.
   - It's primarily a designated area with a name and address. Inside that
   area are individual nodes for:
      - fuel sale/pumps/cash register
      - wiper water
      - air hose
      - restroom
         - drinking water, permissive, wheelchair accessible
      - water bottle filling station
      - hot coffee
         - complimentary
         - dark roast
      - Electric charging station
         - operator=charge point
         - fee=yes
      - Vending machine
         - condoms
         - lollipops
      - Sign
         - name="Esso"
         - height=20m
         - lighted=yes

A hybrid approach is possible also where simple is acceptable:

"amenity=fuel, shop=yes"

But once a station gets past a certain level of complexity, the expectation
is the mapper will break out all the elements.


Whatever solution is chosen, it should be easy to create a summary
database.   For example an offline map may
want to simplify the full tagging down to two icons: "gas" or "gas & shop"
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