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There was no war until a map was presented lol
It took quite a while for the overlay to appear. Be patient if you want to see the data.
I live in Japan. This is great! Though with all the overlay it’s hard to pinpoint my neighborhood. A gps loc button or the ability to temporarily turn off the colors would help! Thank you for making such a fun thing :)
very cool, would be interested to see this approach applied to other markets
this is very cool! I love how responsive the interface is.
Nice concept but struggled to find my area. Short of search or using my location it would be nice to have a line overlay (lines which go underground are obscured currently).
I would really like to know some stats about the Voronoi cells, like average size, largest and smallest...
Often, several stores belonging to the same chain are located in close proximity to each other so that goods can be distributed more cheaply and frequently. This strategy is known as dominant policy (ドミナント政策, dominanto seisaku).[1]

[1] https://ja.wikipedia.org/wiki/%E3%83%89%E3%83%9F%E3%83%8A%E3...

When I was in Poland, I was shocked by the number of Żabka convenience stores. They didn't look quite like Japanese combinis (from what I've seen online), but were leagues ahead of the typical North American convenience stores. They were on every corner, sometimes you could look down the street and see multiple.

https://en.wikipedia.org/wiki/%C5%BBabka_(convenience_store)

Yes, however this approach is what killing Żabka franchisees in similar way as Subways in the US. If one store is profitable enough to stay alive, another one emerges in a very close proximity, resulting in both stores cannibalizing each other profits and the risk regarding losses is being put entirely on small franchisees rather than the big company.
That explains why there's a crossing where you can see 7 Family Marts in Shin-Imamiya...
A few years ago, I was in Wroclaw and it was full of convenience stores.

Where I stayed, you could go to a store and from there see the next one already.

These Japanese YouTubers decided to play a game, they got off a station earlier than their home and to walk home from there, but whenever they pass a Conbini they'd have to pick 6 items and roll a dice and buy that item from the 6. There's a lot of stores...

https://www.youtube.com/watch?v=_yT32QAyv6s

Pretty cool stuff! Side note, it’s always fun to see Japan-related content getting to the front page around this time, as the people in NA are asleep. Would be curious to see HN userbase %s by continents.
This is fun, but I would separate specialized outlets. For example Lawson and Lawson 100 are not the same.
I do have the data to do that, I struggled with colors and overlap/readability. With how much interest the sites been getting this year maybe I should do a v2
Sorry but this seems like vibe coded slop

You cant search or change language

Idk what is the goal here, but maybe some analysis with graph would be better, like who has the most territory or something like that? You also might need to disclosure how you got this data

Hey there I made the site about a year ago or so because I noticed around my apartment is only Lawson's, so I got curious to see and find how common those types of places are. I used ai for CSS since I can't stand it. But this was a project mostly to learn and play with leaflet
What’s the source for combini locations?

I’ve actually been interested in that data for a back burner project for some years now.

This is great, but it doesn't differentiate between "Natural Lawson" and "Lawson", which my partner and I have dubbed "Unnatural Lawson".
There's a lot more than these 6 brands. You have New Days, Daily Yamazaki, and the competition of mini markets as well such as My basket...
All of those are included on the map. You can see them by hovering over a prefecture for a count of each brand within it, or by zooming in. Nonetheless there is also a disclaimer on the info panel specifically addressing this: "This is a pretty surface level analysis of all locations of conbini in Japan. (Only the top few brands)".
I wonder if this information would be a useful addition to a geoguessr player’s toolbox.
I'd love to see this for Taiwan. I'm here now (on my Nth trip where N >= 11), and my impression is that 7-11 is the clear winner in all the cities I've been to, followed by Family Mart and then some stragglers like Hilife and OK Mart (it's ok).

My personal favorite is probably Family Mart, because they have multiple very delicious vegan rice balls to choose from.

I thought Japan had a lot of convenience stores, and then I went to Taiwan.
Ahhh man it'd be so cool to see this for Thailand! My kids live there with their mom and one of the things that surprised them is the overall dominance of 7-Elevens there. They'll be several on the same block. I wonder if it's like that all over Thailand or only where they live?
Lmao I never thought I'd see a site I made pop up here, other than when I posted it maybe a year ago or so. Thanks I'm glad y'all like it :)