7 ms·
Building ages in the Netherlands
- ThisNameIsTaken 7y agoImpressive visualisation. Seems to be an extrusion of the Kadaster (government) building data towards the maximum height of the structure. Much more precise data is also also available: there are height maps of NL with a resolution of 5 points per square meter, IIRC (not my field). Eg [1], but perhaps more parties do similar work. [1]: https://ahn.arcgisonline.nl/Postcodetool/s2.html?app=Postcodetool https://ahn.arcgisonline.nl/Postcodetool/s2.html?app=Postcod... And as mentioned elsewhere, they indeed misrepresent renovations & construction work as building dates.
- tda 7y agoAnd even better, you can view the underlying data as a 3d point cloud here: (crashed my Firefox on mobile) http://potree.entwine.io/data/ahn.html http://potree.entwine.io/data/ahn.html
- billfruit 7y agoVery impressive visualization, works smoothly even on a mid range Android phone.
- bboygravity 7y agoYeah, this is cool stuff. It feels similar to me to OSMand+ (an open alternative to the very laggy Google Maps).
- Freak_NL 7y agoOsmAnd+ isn't open (it has a proprietary licence), but the source of the map data (OpenStreetMap) is. There seems to be a free software alternative for OsmAnd+ called OsmAnd~ by the way: https://en.wikipedia.org/wiki/OsmAnd#Licensing https://en.wikipedia.org/wiki/OsmAnd#Licensing The non-premium version called OsmAnd seems to be FOSS too.
- neals 7y agoTIL my house was built in 1338. I honestly had no idea.
- osobo 7y agoIt's got my house dated incorrectly. Looks fancy though.
- harnettj 7y agoGot mine right
- NietTim 7y agoYea I was wondering this, the house I was born in is in a street of mostly 1920's houses, and then one corner house is from 1875, doesn't seem right to me. 99% else seems right though, really fun to look trough
- Freak_NL 7y agoYou can look up the source data here: https://bagviewer.kadaster.nl https://bagviewer.kadaster.nl It is possible to provide feedback there; your local municipality will look into any feedback provided.
- mtts 7y agoCute, but riddled with errors. In my area (Arnhem / Nijmegen) it assigns 1975 as the date for buildings that are much newer. It also sets my house as 1925 when 1900 would have been more accurate (it was, however, split in 2 around 1920 or so - maybe that’s where the confusion comes from?)
- timvisee 7y agoHappy to report that in my area (The Hague) it seems to be very accurate.
- LeonM 7y agoCan confirm. The building where I live, and my office building (both in the Hague) are spot on.
- tda 7y agoAnd the best ways to get rid of these errors is to visualize them like done here!
- boredpudding 7y agoThey didn't create the dataset. The dataset is from the government's Basisregistratie Adressen en Gebouwen (BAG). If you spot errors, contact your local municipality, since they provide this data to the central registry.
- TazeTSchnitzel 7y agoIt's possible they're misinterpreting the dataset.
- joelhaasnoot 7y agoThis is the official viewer by the creators of the dataset, Kadaster (our land registry office): https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#?geometry.x=160000&geometry.y=455000&zoomlevel=0 https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#?g...
- tmilard 7y agoDoes someone knows wich 3D API there are using ? - BabylonJs (guess?) [could explain the smooth visualisation] - another one ?
- stared 7y agoThere is similar one for Katowice, Poland: http://katowickiebudynki.eu/ http://katowickiebudynki.eu/ (2d, with Leaflet.js)
- stared 7y ago...and the downvote if for? (I am not related to the project above, just in case.)
- armandduijn 7y agoPretty impressive. But it would be nice if you could turn-off certain era's to see how an area evolved.
- by_Ruben 7y agoHave a look at https://www.topotijdreis.nl/ https://www.topotijdreis.nl/ here they layer old maps going all the way back to 1815.
- rootbear 7y agoThat reminds me of a scene in Clarke’s novel “The City and the Stars”, where there is a map that lets one view the entire billion year history of the city of Diaspora. I thought that was a cool idea when I read the book decades ago and now we can actually do it!
- stinos 7y agoIs that base layer something which is standard in OSM and how do I get it?
- zeptomu 7y agoNo, the data is from official government sources. OSM data is good, but mostly not that good in comparison with official sources.
- maxerickson 7y agoIt's a custom Mapbox GL style (clear in the page source). I'm not sure if it is related to one of the Mapbox default styles.
- amelius 7y agoThe buildings are shown in 3D, but it seems it is only a 2D representation + height.
- growlist 7y agoHell of a lot easier to generate, and to render.
- betternot 7y agoRotterdam, which was bombed during WW2: https://parallel.co.uk/netherlands/#13.49/51.91912/4.48476/8 https://parallel.co.uk/netherlands/#13.49/51.91912/4.48476/8
- Zenst 7y agoVery much worth viewing in relation to the effects of WW2 http://googlemapsmania.blogspot.com/2014/04/amsterdam-during-war.html http://googlemapsmania.blogspot.com/2014/04/amsterdam-during... with https://maps.amsterdam.nl/woii/ https://maps.amsterdam.nl/woii/ being the one you want.
- Rafert 7y agoI thought of https://en.wikipedia.org/wiki/German_bombing_of_Rotterdam https://en.wikipedia.org/wiki/German_bombing_of_Rotterdam first. Here's the St. Lawrence church from the first picture of the article: https://parallel.co.uk/netherlands/#15/51.92139/4.485/0/40 https://parallel.co.uk/netherlands/#15/51.92139/4.485/0/40
- AndyMcConachie 7y agoGo look at downtown Rotterdam if you want to see the effects of WWII.
- bogomipz 7y agoWhich effects? Amsterdam wasn't heavily bombed in WW II. Although Rotterdam certainly was and Arnhem was heavily damaged as part of Operation Market Garden.
- mightybyte 7y agoYes, this was my thought as well. I was in Rotterdam last summer which was mostly leveled by WWII bombing. It was very striking how much more modern the city was than cities like Amsterdam which came away with much less destruction. Obviously the destruction was horrible, but it was really interesting to me how it paved the way for redevelopment and vibrant newness. I guess this should be obvious. The chain of cause and effect is very straightforward and unsurprising in retrospect. But somehow at the same time it also seems counterintuitive how destruction can enable advancement.
- lucb1e 7y agoFor those who are curious, the building age data comes from the Dutch government (as others already said). It was imported into OpenStreetMap about 5 years ago by a few dozen volunteers including myself. The data contains addresses and buildings (outline, building started date, and an identifier to make updates easier). This means we removed all existing buildings and addresses in the country, which felt really risky, but because the import was done manually and only tool-assisted, it seems we managed to get it right. Took a few months, but once enough volunteers hopped on, it went quite fast. If I remember correctly, once you got the hang of it (your third import or so), an average municipality took about 2 hours (we have 350 municipalities). For the Dutch speakers among us, more info about the project can be found here: https://wiki.openstreetmap.org/wiki/NL:BAG https://wiki.openstreetmap.org/wiki/NL:BAG I am not sure where Mapbox' height data comes from. In OSM, you can give a "levels" tag to indicate how many levels a building has (from which the height can be estimated), or a height tag in meters if it is known, but the buildings don't have that. Perhaps it is just assumed that large buildings are a bit taller and building=house is an average house height unless otherwise noted? Or maybe they use the Dutch AHN, which is a very accurate height scan of the Netherlands. Some people made it into a 3d picture, e.g. https://snipboard.io/Sq6C38.jpg https://snipboard.io/Sq6C38.jpg (this only uses AHN data, not OSM, so it only has the tops of objects as points, but that's still quite an accurate outline).
- Freak_NL 7y agoTo be more precise: it was imported en masse once, and has been meticulously maintained via localised imports ever since. OpenStreetMap in the Netherlands shows how open data can flourish when volunteers and government collaborate.
- incanus77 7y agoBack when I was at Mapbox and we were developing the library used for this sort of visualization, I did a take on my home city of Portland, OR in a similar fashion: https://blog.mapbox.com/visualizing-an-entire-citys-buildings-live-with-runtime-styling-453fe7e39ae6 https://blog.mapbox.com/visualizing-an-entire-citys-building... (Disclaimer: some of the images, and especially the code formatting, don’t seem to have survived very well) I wrote there a bit more about the data processing side of this, and I tried to make a compelling mobile visualization that was fast. I’d use it a lot for demo and pitch-type meetings, and especially with an HDMI connector direct from iPhone to a 50, 60 or 70” display, the frame rate and fluidity was super impressive. To this day, I just plain love the tech that we built.
- jessaustin 7y agoThe colors for "really old" and "unknown" shouldn't be so similar.
- projektfu 7y agoA lot of houses in Amsterdam date from around the same time as the founding of New Amsterdam
- aaron695 7y agoAlthough these things look great and give us a dopamine rush.... If it was done a little better 'not known' would be white. It would look like crap, but the info would be far more accessible. Looks VS if you actually want the data which everyone viewing doesn't. (Better for data would also be 2d not 2.5, the more dimensions you add the hard data is to process, but that doesn't sell presentations to managers I guess)
- balazsdukai 7y agoFor those who missed the description on the webpage, the data that is visualized is called "3D BAG", which we get by combining the "BAG" (buildings) and the "AHN" (point cloud) data sets. The 3D BAG (http://3dbag.bk.tudelft.nl/ http://3dbag.bk.tudelft.nl/) is created by the us at the 3D geoinformation group (https://3d.bk.tudelft.nl/ https://3d.bk.tudelft.nl/).