Plot idea: Number of benches

[FloEdelmann]

With this Overpass query, you can get all bench nodes in Vaterstetten in OpenStreetMap:

[out:json];
area
  ["boundary"="administrative"]
  ["name"="Vaterstetten"]->.a;   // Redirect result to ".a"
out body qt;
(
  node
    (area.a)                     // Use result from ".a"
    ["amenity"="bench"];
);
out body qt;
>;
out skel qt;

You can also query historical data (since 2012-09-12T06:55:00Z) using the [date:"2015-10-28T19:20:00Z"] setting, see https://overpass-turbo.eu/s/1ilC.

It would be interesting to see how the number of benches in Vaterstetten (in OSM) grew over time, maybe in a monthly interval.

Maybe there also other interesting tags one could plot in a similar manner.

[fxedel]

I like the idea of plotting the number of benches registered in OSM, but I have the fear that people might misunderstand this too easily as the number of benches installed in Vaterstetten. So if someone (maybe you?) walks around in Vaterstetten and adds benches using StreetComplete (dunno if they have the feature), there will be an increase in the benches plot and people might think: "Hey, the local administration has installed quite some new benches, great work!" even if not any new bench has been installed.

I admit that the data quality already is quite good, but I guess there are still some benches missing and maybe some old benches have been removed in the meantime. I don't suspect we can rely on new benches being entered within weeks, so monthly changes would be quite inaccurate. Yearly changes could be okay, but we only had very few data points at the moment then, since the data quality wasn't that good some years ago.

I see two possible ways to use the data:

• Make an OSM-themed page, which plots several different interesting numbers about OSM data in Vaterstetten, like number of benches over time. Then it would be clear that it is a dashboard for monitoring the Vaterstetten data in OSM, not Vaterstetten's real world data.
• Just display the current number of benches. It may still be not 100% accurate, but important is the magnitude, which should be okay. Maybe we can display how many of them are located in the graveyard, or distribution by district, etc. Also adding a leaftlet map would be nice.