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Mapping Indianola, Iowa 2

Posted by b-unicycling on 31 December 2024 in English. Last updated on 1 January 2025.

As I wrote some time ago, I started mapping (remotely) in Indianola, Iowa. I have now reached completion (as complete as it can be with the imagery available) with buildings and added more street furniture, minor highways etc.

In total, I added or modified 6,428 buildings. Indianola buildings

The number of trees added by myself has gone up to 1,185. Indianola trees

Thanks to the two mapillary sequences by Hopen111 (THANKS!) of the same road (North and South Jefferson), I was able to add building levels and quite a bit of street furniture (some of which is also visible on Bing, of course), such as

  • street lamps (177 along that road) (check out on streetlights map)
  • fire hydrants (19)
  • speed limit signs and speed limit on road (8)
  • manholes (27) - I’ve never added so many manholes to any settlement in my life, I think
  • street cabinets (27)

Indianola hydrants

I’ve also added 16 sports pitches and 20 flowerbeds which mostly came from Bing imagery.

In a college town like Indianola (and you don’t have to study geography!), I’d like to see more street-level imagery collected. It would also be good to map defibrillators, if there are public AEDs in Indianola. In the whole of Iowa, there are only 3 AEDs mapped (in Burlington), and there 200 fewer AEDs mapped in the whole of the US than in Ireland (openaedmap.org) which is worrying considering the demographic at risk…

I was an interesting challenge; the grid like streets made it quite easy to be efficient about it - even though I might have still missed some spots.

EDIT: Oops, forgot to add the f4map link: https://demo.f4map.com/#lat=41.3635365&lon=-93.5621150&zoom=16&camera.phi=0.573

Location: Indianola, Warren County, Iowa, 50125, United States

Discussion

Comment from Hopen111 on 2 January 2025 at 01:06

You’re welcome! I’ve got a lot more in other areas in Iowa that you can use as well, such as Des Moines & Fort Dodge.

Comment from Awoobis on 2 January 2025 at 22:46

Now thats titanic amount of work!! I hope you used some kind of help to add those buildings (got’v data, rapid’s/microsoft’s buildings footprints…)

Comment from b-unicycling on 3 January 2025 at 12:38

@Awoobis: Thanks. I just used good old fashioned manual mapping in JOSM and Bing imagery. I probably missed a couple of buildings hiding under trees, but over 6,000 buildings still make a difference.

Comment from stevea on 6 January 2025 at 03:07

This is so awesome! Thanks for your dedication, attention to detail, sharing with us of your process, motivations, challenges, et cetera. All in less than a month!

Comment from sykul on 9 January 2025 at 12:27

I’m impressed at the output. Do you have any kind of methodology that could help others improve their armchair mapping efficiency?

Comment from b-unicycling on 11 January 2025 at 23:22

@sykul: I think I’m quite competitive (mostly with myself), when it comes to mapping which keeps me going. Setting myself certain goals and then going beyond. And visualization helps, so checking the progress and seeing the buildings appear on the actual map or checking the differences on f4map, for example.

Comment from jidanni on 12 January 2025 at 13:39

Great job, but what about the address grids. Alas, OSM currently has no way to map them…

Comment from b-unicycling on 13 January 2025 at 10:43

I wouldn’t know enough about mapping in the States to do anything about that. I added addr:street to some of the houses, though. It’s up to the locals to do their share now.

Obviously, addresses are more important than defibrillators, but I thought that was a given.

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