[Imports] Worldwide fuel stations import, down to 56k objects

Andy Townsend ajt1047 at gmail.com
Thu Mar 15 18:58:43 UTC 2018


On 15/03/2018 10:07, Ilya Zverev wrote:
>
>> Slow website
> Spent a day on that, now the browsing page loads in 10 seconds instead of two minutes.
>
> http://audit.osmz.ru/project/navads_fuel

Not exactly 10 seconds, but it's down to a couple of minutes now (to 
locate something you're trying to find), which is approaching usable.
>
>> Country statistics
> ...
> * "brand" (mostly fixing names or changing capitalization: ARAL → Aral and AVIA → Avia, the latter was requested in talk-gb)

Proposed brand is still rubbish in some cases. 
http://audit.osmz.ru/browse/navads_fuel/NVDS320_20121101 is an example, 
I'm sure there are others.

>
>> "website" tag contains generic URL, sometimes plain wrong
> I've decided to skip this tag for importing. It adds little value, too many links to company websites and not to specific stations.
Thanks.

>> Which other tags are affected?
> Only four tags: "brand", "phone", "opening_hours" and "addr:postcode". Also "ref:navads" is added to every managed station.
You haven't answered the question about data that looks wrong being 
added (in some cases overwriting plausible values that came from your 
own previous import!).

You also haven't replied to the suggestion that you don't overwrite data 
that was marked with a source containing survey (either on the object or 
the changeset).  Quite a lot of this new data seems to be "just plain 
wrong"; it would be a shame to overwrite valid, surveyed information 
with it.

>
>> Duplicate points, seen as adding new stations on top of existing ones.
> Improved the conflation script, found and removed 1342 of these. 1092 were straight duplicates, 260 were just too close to each other and had some matching tags. I have also reported these back to NavAds.

Would it be possible to just see new points?  The biggest issues with 
locations last time was with those.

Also would it be possible to see the data that an object was previously 
edited and the age of the Navads data?  For example, I know that the 
opening hours for 
http://audit.osmz.ru/browse/navads_fuel/NVDS331_00000193 changed a 
little over 3 months ago, but has it changed _again_ in the last 3 
months?  In this case there's actually a piece of paper stuck over the 
"official" sign saying what the opening hours were/are - it's a somewhat 
fluid situation.

> Alas, I cannot decide with certainty whether a POI is a fuel station with a shop, or a shop with a fuel station nearby. Please report such occurences, so I can filter more brands.

That does suggest a worrying lack of confidence in the data - it seems 
to invalidate some of the bold statements on the front page of 
http://audit.osmz.ru/project/navads_fuel .

Maybe instead make this data available as a resource for mappers to use 
(which would give everyone the freedom to decide what editors etc. to 
use, and what other tags to add, as per Jo's point previously).

Best Regards,
Andy




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