Diary Entries in English

Recent diary entries

Gedling House Walled Garden

Posted by alexkemp on 7 May 2017 in English (English)

Another interesting little snippet from the far north-east section of the Nottingham Suburbs called Gedling Village.

This is to do with Gedling House (see the bottom of Gedling Treasures for Grade II listed information). This posting is to make note of the Walled Garden that the house had, but I'll first make some brief notes on the origin of the house itself:–

Gedling House rear

Gedling House front

Charles Gerring in 1908 wrote up some information on Gedling House, and you will find info from that book endlessly quoted elsewhere on the ’net. Most of the local lands (“Thorneywood Chase”) were in the possession of the Earls of Chesterfield and thus inherited by the Earls of Carnarvon. Following cunning machinations by the Liberals near the end of the 19th Century & a battle royale between the Lords & Commons, the Landed Gentry were forced through onerous taxation to sell vast tracts of the lands that they had formerly obtained through Enclosure. This is part of the fundamental genetic of the UK that, in spite of a Grammar School education, I was never told about at school.

It seems that the house was likely to have been built about 1781. After passing through the hands of a great many grandees it has ended up being owned by Gedling Council & is currently occupied by Gedling Homes, with Daisies Day Nursery in the East Wing and CNR Engineering Services in the The Workshop (the latter also run a Helicopter business but not onsite at Gedling House (I was disappointed!)). OS-derived addresses indicated that the 3 houses on the other side of the service-road (Badgers Barn, The Old Stables & Old Coach House) also had Gedling House within their address.

Every local that I talked to impressed on me that the service road that supplies Gedling House is called “Military Road” (it has no official name). It was the kind of insistence that comes from being ignored, and I was happy to fill the void.

As a grand house it had a grand Walled Garden (a popular feature at the time). Today, sadly, that has been cleared & appears as a Car Park and grassed area:–

grassed area

Gedling House car-park Gedling House walled garden grass

The strongest hint to it's original function actually comes from an entrance currently hidden away in the woods (I wish that it was still a walled garden!):–

gedling house walled garden secret entrance

Location: Arnold and Carlton, Gedling, Nottinghamshire, East Midlands, England, United Kingdom

Addition of Atabayew/Agzibirlik renovation/widening

Posted by apm-wa on 6 May 2017 in English (English)

Today we collected GPS traces for the new thoroughfare connecting Magtymguly sayoly to Gurban Soltan Eje sayoly through Old Koshi, which incorporates sections of Agzibirlik and Atabayew plus a new right of way connecting them. I used the Garmin GPS minus the map to collect the traces, and we used OpenStreetCam to collect imagery so we could correctly define the intersections, which were heavily modified. You can see the OpenStreetCam images here:

Location: Magtymguly (2033) sayoly, Ashgabat, Ahal Region, 744020, Turkmenistan


Posted by sirezi on 5 May 2017 in English (English)

Its been a while since i checked on my status though might be busy reshaping the state in my neighbourhood. so help me my beloved master to fulfill the long struggle a head of me

Photographs: A Contrast in Attitudes

Posted by alexkemp on 4 May 2017 in English (English)

Wood Lane is possibly the original heart of Gedling Village (although after a talk & a meal with the elders of the local tribe last Wednesday, 3 May, I'm moving that node close to the 1,000-year-old All Hallows Church, near the area that the villagers themselves call “Gedling Village”). The average recent prices of houses in Wood Lane is ~£500,000 GBP (€590,000 EUR; $650,000 USD), which is 3 or 4 times a typical price for Nottingham. Much of the area is a Private Road (unadopted), but I've got to say that the folks there are most welcoming & not at all snooty (my grandkids & their mum visited me this last Bank Holiday and, after looking at some recent Diary postings, we all decided to take Buddy, their dog, in a walk through Gedling House Woods & Meadows, and had a fantastic time making friends with other, local dogs; Buddy enjoyed it as well).

I had a similar warm welcome & assistance from Dr Soar at Gedling Manor:–

Gedling Manor

The house was described by Charles Gerring in 1908 as “at one time a shooting-box of the Earls of Chesterfield” (hunting lodge), and was visited by Kings of England for that purpose. Whilst I have not yet found a construction date for the current building, archives for the Manor date back to 1401. The estate that contained the current house passed by descent to the Earl of Carnarvon, and was sold on 25 March 1901 to Mr Weston Fulford Marriott Webb. 2 years later the Manor house & grounds (the latter of which was much larger than now) were sold to Colonel William Henry Blackburn.

Some of the grounds were used to build a Grammar School, and the building has passed through a number of hands, most recently being an old-folks home. It is now owned by Dr Soar, who has sold parts as Mews & rented out other parts.

I wish that I could say that the helpful attitude described above also applied to the folks that run Carlton-Le-Willows Academy (a large co-educational comprehensive school with 1350+ pupils, founded in 1973 by the amalgamation of two grammar and two secondary modern schools), but my recent experience sadly suggests not:–

Carlton-Le-Willows Academy School, Gedling

I called in during lunch and, to be fair, did not really have any difficulty or delays obtaining a copy of their school magazine as to obtain contact info. End of lunch rang out as I left & the pupils returned indoors, so I paused to take as good a photo as I could of the front of the school buildings to add to the map. 10 minutes later, as I was trying to find a number on the School bungalow, I heard the School Secretary outside of that hedge calling for me; she demanded that I delete the photo.

I was within private grounds so raised few objections (it was their loss, not mine). My new phone is Android 6 (Marshmallow), and I find it far less intuitive to administrate than the previous model, which used Android Kit-Kat. Normally, I do most of the file admin for the ’phone via my home computer, but they were not willing to allow me to leave without deleting the photo, and I did not consider the fuss worth the bother.

After a short while we were joined by the Director of Safeguarding, an ex-copper who took himself very seriously indeed, and kept threatening to call the police. In the end I found myself in a small room with 4 other adults; one of them was the school IT guy, and he was actually the helpful one as I tried desperately to discover where the final dupe copy of the photo was located (‘/DCIM/Camera/’ is the answer; DCIM==“Digital Camera Images”). The DoS asked for my home address, but he got short shrift from me on that.

Finally, an hour after arriving, I was escorted from the property by the DoS. Yet another bruising experience whilst mapping from middle-class folks with an elevated sense of their own importance.

For the record:–

  • Photographs taken from public property (such as a public road) are the property of the photographer and, in general, zero people can object to such photographs (see this Metropolitan Police Advice and unofficial compendium of advice).
  • Photographs taken on private property require permission from the land-owner.
  • The police are supposed to get involved with preventing criminal activity. Taking a photo is NOT a criminal act, and for this reason the DoS was out-of-order (he also knew from my reaction that I knew this).
  • No-one can remove your photo equipment from you, or force you to delete photographs that you have taken (although that will not stop some from trying to do either or both).
  • In order to force you to identify yourself, or to detain you, or search your person or belongings, the Police need to place you under arrest. That requires due cause (a reasonable suspicion that the person has engaged in criminal activity) and has to follow a specified format (including reading you your rights, something that those reading this will have seen many times on TV). Mapping is not yet a criminal activity so, after calmly explaining what you are doing, politely refuse to ID yourself/be searched and keep asking whether you are being detained or am under arrest; once they say “no” declare “in that case I'm free to go, am I not” (it is actually a statement, rather than a question), thank them for their time and depart.

  • Oh yes. Please remember: IANAL.

Location: Arnold and Carlton, Gedling, Nottinghamshire, East Midlands, England, United Kingdom

Language map

Posted by Dotevo on 4 May 2017 in English (English)

Regarding my previous Esperanto post I want to write something in English. I've created a map with names in specific language (a few here). And also I'm using a few not popular tags but I thing that should be important in future.

  • language:[LANG_CODE]=yes
  • books:language:[LANG_CODE]=yes
  • [SOMETHING]:language:[LANG_CODE]=yes

Why I think those tags are interesting and important? If you know place where a specific language is supported, you should add that information. It can be very helpful if you're tourist (hotels) or you looking for something. Example in country X you are looking for book in language Y. What next? Movies?

BR, Adam

Reviewing Pokemon Go mapping features

Posted by manoharuss on 4 May 2017 in English (English)

During recent months, we have seen a lot of new user activity and pokemon targeted feature mapping on OSM. This correlated with observed/assumed association of pokemon spawn points with OSM features by PokemonGo players.

From my observations on reviewing changesets, some features are mapped very specifically for specific pokemons. Some of these features are parks, meadows, waterbodies, gardens, protected area’s, village_green’s, natural reserves, golf courses, cemeteries and forests .

So I made these comparators in OSMCha that flag a new user’s(<=10 changesets) changeset if one of these features have been added brand new(Version 1).

1. Park features added by new users

  • This reason flags a changeset if there is a creation of these features in it
  • recreation_ground, village_green, park, nature_reserve, protected_area, national_park, garden

2. Waterbodies added by new users

  • This reason flags a changeset if there is a creation of these features in it
  • natural=water, water=, landuse = pond or reservoir, waterway=

3. Pokemon nest features added by new users

  • This reason flags a changeset if there is a creation of these features in it
  • recreation_ground, park, pitch, playground, golf_course, meadow, grass, cemetery, grass, forest

One can combine reasons in OSMCha and look at changesets now, add bboxes to specific areas and share permalinks. Ex: All pokemon based reasons in Germany.

From our experience validating, a lot of this mapping is really good and rarely do we find any suspicious edits. Let us know if you find these useful or if I need to tweak them based on changing Pokemon trend.

Screenshots of some really interesting mapping activity I have come across




OSMF regular member distribution

Posted by dieterdreist on 4 May 2017 in English (English)

Probably everybody has guessed it, but here is a proof with Jan 2017 data: OSMF members are mostly living in Europe and the US, with a concentration in London, Germany, and in the US on the East Coast (Washington and NYC) and in the Silicon Valley.

Two trips to ruins of an old sawmill

Posted by ChristianA on 4 May 2017 in English (English)

Last week I went twice to visit (and map!) the ruins of an old sawmill, called Älsebo såg in swedish. There were two POIs on openstreetmap, but I wanted to check it out to see if I could map some areas also, and perhaps roads as well.

The first time I was out biking and mapping in the forest. I knew from studying an old map that there was supposed to be an old disused road in the forest. These are among my favourite things to map and so I was very happy to find the road in the forest. Unfortunately there was a stream crossing the trail, and the bridge was more or less nonexistent:

Not the best bridge I've crossed

It was possible to cross but very difficult to also get my bike across at the same time. I considered throwing the bike, but since it is only two months old I'd rather get wet instead. But I managed to get across.

Anyhow eventuelly I arrived where the old sawmill was supposed to have been, and I immediately discovered both ruins and another old road in the forest. Älsebo såg

The ruins were pretty easy to find, though one side of the stream had many trees lying over the actual ruins. Älsebo såg

Close to the sawmill I also saw the ruins of what probably was an old residential building, probably related to the sawmill.

Älsebo såg

Since I was out biking and still hade a long way back home, I decided not to stay very long. Instead I went back two days later, bringing my kids along. They played in the stream while I went around and took pictures and GPS traces. The kids love this kind of places; they can play as much as they like and they can stay for a long time. I really enjoy combining hanging out with my kids in the forest and mapping.

Since the main sawmill buildings were inside the river canyon and had high buildings around them, the GPS traces were not very reliable, so it was quite difficult to trace the outline of the ruins, but I tried anyway.

I also followed another old road close to the sawmill; this had probably been used at the same time as the sawmill. It connected to both lake Ämten and the other old road I found earlier. All in all I am quite happy with the results, though there may still be more interesting things in the area to map.

Location: Askersund, Kvillinge församling, Norrköping, Landskapet Östergötland, Östergötlands län, Götaland, Sweden

Bayanihan Mapping Workshop in Batangas City

Posted by GOwin on 3 May 2017 in English (English)

Ala eh OSM - the Basic Mapping Workshop

imgAOI Click the image to view the details via Overpass Turbo query.

Last week, a few OpenStreetMap advocates from Metro Manila made a trip to Batangas for a training engagement with the Bayanihan Mapping Workshop co-organized by MapPH and their partners. OSMph has had extensive engagements with some of MapPH efforts in the past years, and we continue to work with them in common spaces where we can collaborate.

The workshop was attended by over fifty enthusiastic participants, mostly from the respective Disaster Risk Reduction Management (DRRM) office, or the Planning and Development offices of the local government units within the Taal Volcano Protected Landscape (TVPL), about a third of the municipalities of Batangas province:

  • Agoncillo
  • Alitagtag
  • Balete
  • Cuenca
  • Laurel
  • Lemery
  • Malvar
  • Nasugbu
  • Taal
  • Talisay

MapPH's principal partners - Pusod, Inc. (an NGO that supports sustainable tourism within communities they work in; they've established the Taal Lake Conservation Center in the town of Mataas na Kahoy ), the TVPL Superintendent's Office (under the national Department of Environment and Natural Resources ), and the activity's host, the Batangas State University - also sent their representatives to participate in the workshop.


As with our usual program for introductory courses, the iD editor was used, and the training put special emphasis on how to map and match features and geometries properly, tag them appropriately, and with practical mapping exercises, show how they can use them in their particular mapping efforts after they return to their communities.

The participants were trained in a number of practical field survey tools and techniques, including: Field Papers, SatNavs, and photo-mapping.

Field Papers has always been a long-time favorite for low-tech, low-cost approaches for mapping communities effectively. For collecting track logs, theoretical SatNav topics, practical examples, and alternatives were discussed, as SatNav devices are not commonly available to participants.

And with the ubiquity of SmartPhones, Mapillary was introduced as a photo-mapping tool for collecting fresh, street-level imagery, when aerial imagery is inadequate, out-dated, or non-existent.

Here's one of the teams during the field survey, using Field Papers.

imgSurvey © 2017. Feye Andal.

The local Mapillary Ambassador is caught on camera; leading another survey team and photo-mapping with the app: MapillaryAmbassador

Check out these street-level photos captured using the Mapillary smartphone app by a Talisay DRRMO staffer from another team.

After the field survey, the participants uploaded the data they collected and used them to update the map of the area their team was assigned for the exercise:

imgActualSurvey Click the image to view the details via Overpass Turbo query.

The teams continued with arm-chair mapping, and we also discussed other topics on how to utilize OSM data further. Some participants got lucky with smartphone holders given away, which they can use in their cars and bicycles, courtesy of Mapillary, like this one here:

imgWinner © 2017. Feye Andal.


There are a number of diligent mappers in the Batangas area (@TagaSanPedroAko is a conscientious mapper that comes to mind), and also because of the previous mapping activities led by UP-NOAH (erst Project NOAH), substantial building footprints has been traced from current satellite imagery, as well.

I hope that we also succeeded in conveying the value of Free and Open data, and how such data, and platforms like OpenStreetMap, contribute towards other public projects (like UP Noah); and, that their efforts to produce better community maps, also shape and improve regional and national maps.

We'd like to see these awesome OSM contributors - new and old alike - continue their mapping efforts in the spirit of our bayanihan tradition, and enrich the local geodatabase in close cooperation, with inspiring details and relevant features that their communities find valuable and important.

Remote mapping is important for baseline data but relies solely on available imagery, and can only do so much -- local knowledge and local action trumps that. In the future, we'd prefer to see more mapping parties organized from, and led by the local community.

Did you participate in the workshop? We welcome your feedback, so we can do better next time.

The awesome OSMph circus troupe posing with some bananas. (No bananas were hurt during the photo shoot.) teamOSM

All content in this post not under any other entity's copyright is hereby distributed under CC-BY-SA license. ↄ⃝ Erwin Olario.

Location: Poblacion, Batangas City, Batangas, Calabarzon, Philippines

Italy's top 250 contributors

Posted by dieterdreist on 3 May 2017 in English (English)

I only recently discovered that Jochen Topf has published a command line tool based on his great Osmium library. The Osmium library is a C++ library optimized for working with OSM files in different formats like XML and PBF and is very fast. While the original library is geared towards developers (besides the c++ version there are also python and node bindings), the command line tool is great for normal users.

To give it a try, I decided to have a look at an Italy extract from Geofabrik I had downloaded in March and which was still lingering on my disk. Linux and Mac users know, the great potential of the shell lies in the ability to perform multiple commands in sequence by piping the output of one operation to the next tool in the chain.

Here is what I used to get a list with the last modifiers (mappers) of every object in the file, sorted by the number of contributions (only current version of undeleted objects have been counted here, but Osmium-tool also allows for analyzing full history files if I am not misguided):

osmium cat 20170302_italy.osm.pbf -f opl|cut -d' ' -f7|cut -c 2- \
         |sort|uniq -c|sort -nr|head -n 250 >italy-top250.txt

I'm not very good in using the shell, so maybe this command line can be improved, feel free to suggest improvements in the comments.

The binary extract I used is 1.2GB and was sitting on a network share and I was using a slow dual core MacMini (this is why there aren't spaces around the | pipe symbol, the Mac shell doesn't like them) so it took a while (maybe half an hour), also because the sort command in the shell takes some time, but IMHO this is totally acceptable for occasional use.

In case you are interested, this is the output (I have numbered the lines with cat -n. Unfortunately there seems to be a bug or a feature so that the markdown in this diary is removing the newlines). Needless to say, many of the higher ranks have been "cheating" by importing big amounts of data ;-)

(The format is: rank number-of-objects username) 1 29194970 mcheckimport – 2 11687326 DarkSwan_Import – 3 4783408 simone – 4 3498422 mcheck – 5 3158791 corfedeimport – 6 2767460 Max1234-ITA – 7 2180468 nuvolabianca – 8 2097580 Alberto58 – 9 2065697 Arlas – 10 2039526 GiuseppeAmici_IT – 11 1944201 dvd0_CTRVenetoImport – 12 1846327 Al3xius – 13 1399149 kaitu – 14 1331688 pikappa79 – 15 1313970 Alecs01 – 16 1307324 Pab09 – 17 1271852 Diego%20%Guidotti – 18 872370 roscolosco – 19 802453 dieterdreist – 20 775391 Sembola – 21 759292 aldoct – 22 728828 dvdzero – 23 722980 josil – 24 698823 Alexander%20%Roalter – 25 696697 morsi – 26 688070 Stefano%20%Salvador – 27 669971 albertux – 28 666608 Fredie – 29 660525 Tizianos – 30 655812 IlBano – 31 635687 BudSpencer63 – 32 629700 GatoSelvadego – 33 590057 fayor – 34 539531 Ale_Zena_IT – 35 530778 arcanma – 36 520790 RColombo – 37 519351 ilrobi – 38 513343 Heinz_V – 39 504228 Mich74 – 40 501426 sabas88 – 41 497505 sbiribizio – 42 494637 Davlak – 43 485771 vpettenati – 44 479774 dan980 – 45 477834 DarkFlash – 46 477421 simone_girardelli – 47 470226 sabas-import – 48 466439 Gianfranco2014 – 49 460886 sorcrosc – 50 459812 dgitto – 51 451687 gpstracks – 52 444212 gvil_import – 53 431752 corfede – 54 428783 Ken%20%Hayabusa – 55 425416 pippinu – 56 424626 StePedro83 – 57 422138 sponge – 58 418211 vancori – 59 412278 adirricor – 60 410575 bellazambo – 61 405470 David%20%Paleino – 62 405372 Davide%20%Governale – 63 405364 demon_box – 64 401735 Odiug – 65 400067 voschix – 66 398116 venerdi – 67 389878 zarch – 68 388100 import%20%edifici%20%palermo%20%2014 – 69 384016 vlattanzi – 70 383706 Aury88 – 71 383522 RAFVG%20%import – 72 378605 dani64 – 73 370847 Griphon – 74 367640 Martj9 – 75 364584 rugamarcus – 76 359694 50x34 – 77 358963 Fabry – 78 349027 fedc – 79 348793 achim%20%becker – 80 340916 peppe10 – 81 335764 coso – 82 334861 mauriziobis – 83 333969 Luca%20%Dorigo – 84 332989 TheNick – 85 329211 GeofixFe – 86 321319 Lykos64 – 87 315738 makakko – 88 314594 iiizio – 89 313882 Cascafico – 90 308928 dan980-import – 91 306593 Geofreund1 – 92 305833 Goffredo – 93 297306 niubii – 94 294946 glaucos – 95 294725 Guido_RL – 96 292623 dino57 – 97 290158 colasurf – 98 286777 Ale_Zena_IT-import – 99 284524 Axel2009 – 100 281100 ualios – 101 275448 mauro742 – 102 274737 Geograficamente – 103 255450 jeawrong – 104 252317 openpablo3 – 105 252154 Eraclitus – 106 250060 Sal73x – 107 248172 Bredy – 108 246745 jaimemd – 109 237132 lorenzoguidotti – 110 235719 vrmap – 111 233713 Francesco%20%Viti – 112 225989 alessandrob – 113 222961 tyr_asd – 114 214408 carths81 – 115 213959 marcoSt – 116 213493 Paolo%20%Gianfrancesco – 117 211178 scratera – 118 206829 andgas54 – 119 206095 Michele%20%Aquilani – 120 205991 tungstentt – 121 202647 bt1950 – 122 200155 danyzeta – 123 199950 Mattia%20%P – 124 196705 hikerit – 125 195332 MarcoR – 126 195010 SingletrailMap – 127 194586 LuSirto – 128 193440 procuste – 129 191789 Dufour85 – 130 190860 FraPla – 131 188936 metamorris – 132 185613 capataz – 133 185243 marcram – 134 185019 Puccia – 135 184959 gigi2037 – 136 181906 Emistrac – 137 181777 popeye – 138 180037 mircozorzo – 139 179369 Castaman – 140 177489 rospus – 141 177303 OSM-mircozorzo_import – 142 176027 doktorpixel14 – 143 173578 trimoto – 144 172427 BogNik – 145 171617 SldrHartman – 146 171192 Patrick%20%Bous – 147 170347 gss272417 – 148 170282 Freiheit28 – 149 167360 corand – 150 166595 Terensky – 151 164870 Yiyi%20%(itwikipedia) – 152 164683 trekker48 – 153 162874 Simone%20%Saviolo – 154 162023 Cristian1989 – 155 161004 vezzo – 156 160216 Al%20%Bedo%20%Zero39 – 157 159788 Samuele%20%Battarra – 158 159243 Guido%20%Piazzi – 159 158873 Pathumthani – 160 158532 mikerpux – 161 158143 Gwilbor – 162 157604 carlobenini – 163 157005 UmbeP – 164 156884 csmggl – 165 155476 Alepoz – 166 155133 Decan – 167 154312 hotelsierra – 168 154170 Skombi – 169 153880 DnaX – 170 153149 merto – 171 151064 focus81 – 172 147773 Wave68 – 173 147389 Marco_T – 174 145891 satgps – 175 144500 remix_tj – 176 142696 slg – 177 142086 hobbie – 178 141970 effebi-sm – 179 141764 damjang – 180 140431 Diego%20%Cruciat – 181 135683 bvivi – 182 135345 Baliano – 183 134046 Anxe – 184 133018 gilbomorris – 185 130725 ilBiondo – 186 130069 Francesco_Loponte – 187 129813 Bigshot – 188 129457 Pyknite – 189 129174 Ataro – 190 129073 CatenaDiVoltri – 191 127890 farlokko – 192 127787 Luigi62 – 193 126734 flschm – 194 125972 Adriano%20%Ingallinera – 195 125776 totera – 196 124519 ALn_668 – 197 124390 Veneto_Civici_Import – 198 123901 WernerP – 199 123327 alessioz – 200 122145 frasty – 201 120691 softcake – 202 119419 spezzi64 – 203 118518 emmanuelecois – 204 117990 Marco_Fix – 205 117764 Flavio61 – 206 117604 Kiwi – 207 115936 matchman – 208 115677 pavelo – 209 114426 gmarzio – 210 112629 Sen%20%Atto – 211 110375 grfoto – 212 109726 bersanri – 213 107872 Taurus77 – 214 107541 peppo – 215 106867 Cristian%20%Testa – 216 106180 paolopoz – 217 106103 fmondini – 218 105839 maxiclimb – 219 103943 joecow – 220 103702 Davide%20%Prade – 221 103285 mux0815 – 222 102356 botdidier2020 – 223 102265 wiso_dbtopo_lodi – 224 101967 Gianluigi – 225 101051 luschi – 226 100004 pelatom – 227 99228 mikel17 – 228 98720 AlessandroAM – 229 98613 agnostico – 230 98174 mikelima – 231 97666 IA1979 – 232 97639 trianam – 233 96667 Udini – 234 96143 OpenGISData – 235 95547 Denisov21 – 236 95467 Berga – 237 95230 Jinx71 – 238 95079 StefanB_import – 239 94412 gnastyle – 240 94137 bmarco – 241 93333 Tomi – 242 92947 CouchPotato – 243 92791 lerks – 244 92506 snaut – 245 92408 Niccolo – 246 92036 bartmanxc – 247 91860 ReinerMeyer – 248 90910 g195 – 249 90336 marco%20%zudetic – 250 90303 lucadelu

If you want to install the osmium-tools on a Mac with OSX10.11 (El Capitan) or newer you'll find that make install will not work due to System Integrity Protection which will not allow (even for the root user) to put files into some system directories and will stop with an error. While you could deactivate SIP completely by booting into protected mode and executing csrutil disable, I wouldn't recommend you to do so and it is not needed: it should be sufficient to manually create a symlink to the binary after compilation in /usr/local/bin like this: ln -s /path-to-osmium-tool-source/build/osmium /usr/local/bin/osmium (using usr/local/bin doesn't require the SIP to be deactivated).

Location: Municipio Roma I, Rome, RM, Lazio, Italy

Mapper of the Month: Ben Abelshausen (Belgium)

Posted by escada on 3 May 2017 in English (English)

Can you introduce yourself ?

The last years, my main occupation was OpenstreetMap. I was also one of the co-founders of OpenStreetMap Belgium. I am a self-employed and freelance software developer, usually related to routeplanning.

Furthermore, we love to travel, our daily amusement is often a visit to a pub with some friends or having a nice dinner at a restaurant.

Where and when did you learn about OpenStreetMap ?

I needed data about the road network for my job and soon you arrive at OpenStreetMap. This was in 2009 and it did not look realistic at that moment to use OpenStreetMap data, but I was intriged by the concept and in the following years, it proved to be the right choice.

##Do you use OpenStreetMap yourself ? I constantly use OpenStreetMap, both for my job and my private life. I never vist a place without an offline map of the region on my smartphone. I use OpenStreetMap daily for my job.

How do you map ?

The past few months I have not mapped a lot. I am more of an "armchairmapper", but I strongly believe in the community, no OpenStreetMap without community. Only individual mappers behind a computer would never work well. From time to time I correct mistakes or small this that are missing that I notice by using the data, but usually I am too late. Occasionally I do some mapping for Missing Maps and Hot, mostly validating tiles.

What do you map ?

I do not really have a speciality, but when I have to pick one, it is everything related to road network and transportation. In my early days I also traced a lot of buildings and mapped quite some landuse.

What is your biggest achievement ?

That we created a real community in Belgium. At the first meetup we organised in Ghent, only one person showed up. Now, a few years later, we organised the State of the Map !

As far as mapping is concerned, I am glad that I fixed the imported landuse on the Belgian-French border, so that we can further improve this ourselves.

Why do you map ?

I am motivated by several aspects. In the first place it's just fun and it also helps that you know are doing something useful when you add data. When I map for Missing Maps, I am mainly motivated by the humanitarian aspect. For my mapping in Belgium, it helps that the work that I deliver professionally has a better quality.

Everybody in OpenStreetMap has several reasons to map, I have some myself. I believe this is the main reason why this project is so succesfull.

Do you help out with other aspects of OpenStreetMap ?

The majority of my OpenStreetMap related activities are "other aspects". I try to make OSM better known by the public, not only OpenStreetMap, but I try to make open-data better known. Therefore I am part of Open Knowledge Belgium, more specifically, the OpenStreetMap Belgium Working Group

This helped us to organize State of the Map 2016 at the VUB in Brussels. We also organize more meetups en Missing Maps events than ever before and we are also working at a number of new projects. I am also a HOT-member and help out with their activities from time to time.

How can we extend the community ? How can we motivate mappers ?

All my activities are based on the idea that OSM is the community and that a healthy community is the most important think to focus on.

It's definitely a good idea to try and make sure everyone feels welcome. Mappers what are personally involved in the project are also by far the best, most productive mappers, both when it comes to mapping itself but also community building. It's also way easier to make descisions by consensus when people meet in the flesh.

There is still a lot of room for improvement, we can try to involve some of the companies that use OSM, for example by sponsoring OSM-BE or by supporting our activities. At the moment we have no budget at OSM-BE to work with, we could do so much more with a small budget.

What is the biggest strength of OpenStreetMap ?

At the risk of repeating myself, but the answer is again the community. I think one of the best things about OSM is the realization that technology is not the answer to every question. OSM data is rich and diverse because we don't blindly use drones, robots or some fancy algorithms. Our competive advantage is just this. The descision people make about what they map is important and it's partly because of this OSM won't be replaced or become obsolete by someone with a big budget.

An important 2nd place, and related to the first, is the fact that OSM is open, you can download the data and you can start doing amazing things. This is not just important just because 'open' is always better, without being open we would have less stakeholders that are interested in keeping the map up-to-date, less diversity and less interest in the project. Waze as a counterexample exists for one main goal, profit, or maybe some strategic advantage, OSM has as many goals and motivations as there are mappers. That's also why discussions about the OSM data license are so important.

What is the biggest challenge for OpenStreetMap ?

It's important to keep the community healthy and divers enough. The biggest challenge is to get together and keep together people of various different backgrounds.

It's also important to keep some of the stuff that works now, like some measure of freedom and anarchy while still growing to a reliable partner to work with, and I'm talking about OSM-BE specifically now. I belive in a community like we have to with next to it a group like OSM-BE that places itself at the intersection of the community in Belgium and the outside world.

How do you stay up-to-date on OpenStreetMap news ?

Via twitter, mailing list, OSM Weekly, OSM diaries, HOT, I read everything. Can't get enough of everything that's happening in the OSM community.

Do you have contact with other mappers ?

On a regular bases a the events we organize but also via email and the mailing lists. Recently we also have a Riot channel where it's fun to hang out.

Anything you want to add ?

Thanks to all mappers who ever edited the map, who have spoken to someone about OSM or anyone who every helped us organize an OSM related event. Thank you, no OSM without all of you!

First entry

Posted by Greg_Rose on 2 May 2017 in English (English)

Stikine-Chutine river confluence. A doozy.

Location: Regional District of Kitimat-Stikine, British Columbia, Canada

BHOOT - A journey towards sustainable future...

Posted by tasauf1980 on 2 May 2017 in English (English)

The journey of OpenStreetMap community is a perfect example of community volunteerism approach. Despite any structural funding the community made it’s own mark in the global humanitarian arena. The continuous support from HOT, MissingMaps & recently Mapillary boosted the enthusiasm of the community and inspired them to go far beyond.

However, in recent times the necessity is felt to give the community a organizational structure. Keeping this on mind most recently a group of very active and experienced members of the OSMBD community has just formed an OSM based innovation lab BHOOT (Bangladesh Humanitarian OpenStreetMap Operations team).

The main objective is to make the OSMBD community more active & vibrant and lead the community towards sustainable future. It's not yet been started as an registered organization but there are plannings on that. The team have been preparing the plans to conduct a full scale field mapping in a disaster pruned area of Bangladesh. The team has already initiated a project in Belkuchi area of Sirajganj district and planning for a street mapping project for the whole Dhaka Metropolitan.

The plans for both of the projects includes but not limited to creating a detailed base map of the areas, develop an data collection application tool for OSM field mapping, integrating Mapillary street level photos to the map and conducting some field level researches.

PDF download does not function

Posted by Mary Ry on 1 May 2017 in English (English)

Dear all, Could you tell me why there is an "internal server error" message displayed when I try to download a map in pdf format? Till now, it has always worked... Thanks in advance

Dhaka Mega Mapathon

Posted by mmahmud on 29 April 2017 in English (English)

29th April, 2017

Today we held one of the biggest Mapathon in Dhaka city. A bunch of mappers came, both new and old. This was an all day event and we mapped, we trained, we learned and we became more confident and positive for our future endeavor to map out the whole Dhaka city.

#OSMBD #BHOOT #Dhaka_Mapathon #HOT #Mapillary

Belarus in Belarusian + bilingual / trilingual / quadrilingual names in Europe

Posted by meijerry on 29 April 2017 in English (English)

Dear All,

I have been in around 35 countries around the world and I noticed Belarus is the only country that appears on Openstreetmap in a different language than on-spot. To be more precise, all names appear in OSM in Russian (Островец, Осиновка, Ошмяны for example), but when you drive there, everything is written in Belarusian (Астравец, Асінаўка, Ашмяны for instance). I've got nothing against Russian language (which is definitely more spoken in Belarus than Belarusian). However, I think we should start ASAP to correct that mistake and make Belarusian village, town and city names the main ones. In some cases even street and public transport names (in Minsk these things appear in Belarusian). The purpose is simple: for instance when you use (a GPS app that uses OSM), if you drive to Asinaŭka. it appears "Asinaŭka" and, just below, the name in Russian (Оснивока). However, when you arrive to that village, you see "Асінаўка". It is extremely confusing for travelers, especially if they don't read cyrillic.

Another question: multilingual names in Europe. Numerous cities, towns, and villages appear with bilingual names on spot (but on OSM their main names appear only in one language). It would be good to make those names appear as they appear on spot.

How do you think?

Specificity vs Readability

Posted by 3ngineer on 29 April 2017 in English (English)

Sometimes I wonder if the ability to define such specific details actually makes the map more confusing and inconsistent rather than informative. By no means am I an expert, but I have a feeling that there's a lot of info that's practically not needed. The ability to add it just makes people fight and unhappy with others' judgement. Also, the map can become confusing when very similar types of things are drawn different ways; I think that contributes to OSM's messiness. Nevertheless, if we take out too much info, we would just become Google maps XD so perhaps just ensuring similar things have similar styles is the best approach.

Latest MapRoulette newsletter

Posted by mvexel on 28 April 2017 in English (English)

I am going to stop posting the full monthly MapRoulette newsletter here from now on, but the April newsletter has just been sent to the subscribers! You can view it here.

Subscribe to the newsletter on this page.

OSM Tutorials

Posted by mmahmud on 28 April 2017 in English (English)

Trying to create some video tutorials for OSM. Playlist is here:

About landuses and landcover, in particular landuse=residential

Posted by dieterdreist on 28 April 2017 in English (English)

Today I was asked by another (very active) mapper via email these questions:

We are currently discussing best practices for landuse mapping in Belgium. Some of the problems:

  • do you use multipolygons to avoid overlapping landuse or do you split a residential landuse so you can have smaller landuses ? Or do you just overlay them ? A lot of landuse is already mapped in a rough way, so we typically have large areas of residential landuse.
  • Do you include streets in residential landuse or do you exclude them so one can later add area:highway or landuse=highway ?
  • I'm in favour of landcover to avoid "forests" in gardens. Which landcover proposal do you follow ? (I believe there are 2).
  • what about grass/bushes in towns near highways ?

I wrote some lines how I believe it should be done. Here's a slightly modified version:

Residential landuse

Regarding the residential landuse, I am since almost 10 years advocating to not include roads but end the landuse at the property borders. Not only does it add more detail, because you can clearly distinguish (even without roads), parcelled land and common land, it will also be easier to add landuse=highway, i.e. the land that is legally a road. It just makes no sense from a legal point of view to add streets to the residential landuse (save maybe those areas where the streets are private). I do include driveways though, i.e. "roads" on the properties.

Clearly, public roads are road landuse, so they must not be included in residential, industrial, commercial, retail or other similar landuse.

why do people often use huge polygons including whole settlements in one landuse object?

IMHO the 3 reasons for people to include roads are

  1. lazyness (to draw and to determine the precise border, ...)

  2. OSM standard style is not rendering place areas, so people misuse residential landuse to say: built up area

  3. people hating "gaps" or voids in the map and think it must be "complete", so they connect the landuse to the road and prefer to have it "wrong" rather than "incomplete".


Of course it also depends on scale. IMHO we should try to map in a high scale, e.g. 1:500 - 1:1000 (because simplifications can be computed at need, while details can't), but if you do your mapping in 1:10.000 and lower you would likely not represent these details and would "include" the roads (actually it wouldn't be discernable whether they are included or not in these scales).

Using multipolygons in landuse mapping

I also advocate to not use multipolygons for built up landuse, if it is not strictly necessary (never met a situation where it was necessary, but it might exist). It just creates unnecessary complexity and deters less experienced mappers, and leads to errors laters. It is not necessary, just make the landuse as small as you like and need. (I think that landuse is a property of the land, I don't see it as a feature, i.e. for mapping a "residential area with a name" = part of a settlement, I suggest to use place, e.g. quarter, neighbourhood. Can even work for industrial areas (their names)). This way, you don't mix stuff and are not forced to ignore parcels with different landuses which are also a part of the settlement part (toponomastic area).

On the other hand, when mapping in rural areas and landuses like farmland, forests and other natural features (scrubs, heath, beaches, ...), multipolygons might come in handy to avoid duplicating long (and complex) ways by reusing them.


Regarding landcover, I mostly only use 3 values: trees, sand, grass, although it could be extended by more vegetation and surface types (like bushes or whatever term is correct for these, currently I use natural=scrub for thickly vegetated / unpassable areas and avoid the landcover tag there). I admit as long as it doesn't render I still add stupid forest tags additionally, although it really is stupid ;-) I don't know about 2 landcover proposals, but for trees, sand and grass there isn't much to discuss I think.

Grass and bushes along roads

If they are (legally) part of the road I would see them as landuse=highway, grass can be landcover=grass, bushes are (in my mapping but I believe it is a common agreement) natural=scrub.

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