Blogs.OpenStreetMap.org

November 22, 2014

"OpenStreetMap.org User's Diaries"

Lupus

Antinuclear antibodies (ang. antinuclear antibody - ANA) are the primary test in the connective tissue diseases. At the beginning of testing is performed ANA 1, ie. screening test stating whether the antibodies are present and what are the type of light (eg. a homogeneous, granular, peripheral). Result in positive ANA 1 carried out further tests (ANA 2 and ANA3) define the exact type and antibody titer. It should be noted that "weakly positive" result ANA can also occur in healthy individuals and in itself does not indicate the disease yet. In systemic lupus erythematosus Antinuclear antibodies occur in more than 90%, and some of them (anti-dsDNA and anti-Sm) are characterized by high specificity for the disease. Negative ANA, especially if it is repeated over time, is often sufficient to exclude the disease. Only a few patients we have to deal with lupus without the presence of antibodies - usually occur when the type of skin lesions SCLE and DLE (see above), inflammation of the serous natural membrane, hypersensitivity to sunlight and Raynaud's phenomenon, sometimes after some time, there are anti-Ro antiphospholipid antibodies - these include anticardiolipin antibodies against beta2 glycoprotein-1 and lupus anticoagulant; occur in 30-40% of patients with lupus; are associated with a higher risk of thromboembolic complications and obstetric (see question 3 - antiphospholipid syndrome).

by pawelboratyn1982 at November 22, 2014 10:37 PM

Meu projeto mais completo

Acabei de finalizar o "mapeamento" completo de Itaporã, uma pequena cidade do Mato Grosso do Sul, Brasil.

O projeto consistiu nas seguintes etapas: * Obtenção das fontes primárias das informações (mapa da prefeitura e IBGE); * Criação das vias que não apareciam no mapa; * Nomeação de todas as vias, inclusive as criadas; * Correções das vias e áreas imperfeitas (pré-existentes no OSM); * Delimitação dos bairros, cirando as relações e nomes dos mesmos * Criação dos rios e córregos (ainda falta "lapidar" o córrego Sardinha).

Fiz em praticamente em duas semanas. Apesar de ser uma cidade pequena, deu trabalho, pois todas as vias (exceto as estradas e principais) estavam sem nome. Muitas vias e bairros inteiros também ainda não apareciam no OSM (vias).

É possível que ainda tenha alguma incorreção, apesar do esforço para suprimi-las. Se algum voluntário quiser revisar fique à vontade.

by Ivaldo at November 22, 2014 08:11 PM

Latest Changes

Schon spannend zu sehen, wie aktiv eine Gegend bearbeited wird: Latest Changes. Leider werden nur die letzten sieben Tage angezeigt.

by cupofcoffee at November 22, 2014 06:27 PM

ШТОСМ

В точку

Лучший дизайнер в Mapbox, Saman Bemel Benrud, изучал взаимодействие слоёв на средневековых художественных картах, и решил присвоить разным объектам OpenStreetMap единый стиль. Получилась дистиллированная карта мира, где ничто не пересекается, и всему есть место. В заметке он объясняет нюансы CartoCSS в этом стиле и ссылается на другой пример такой техники: карту а-ля супер марио.

November 22, 2014 06:13 PM

"OpenStreetMap.org User's Diaries"

Osm è la migliore mappa di Verderio Superiore

Da oggi la mappa della zona di Verderio, una volta conosciuta come Verderio Superiore, è stata migliorata con l'aggiunta degli ultimi numeri civici ed attività economiche in essa presenti (tra industrie, negozi e uffici).Ho inoltre anche modificato lo stile di mappatura delle aree industriali ed agricole che passano da uniche macro relazioni (ancora presenti nella zona di Verderio Inferiore) a singole aree per singoli lotti di terreno/industria.

Ho controllato un po' in giro e non ho visto mappe paragonabili ad OSM per numero di dati e dettagli. Alcuni noti servizi presenti in rete, pur avendo un ottima mappatura, spesso posizionano alcuni elementi un po' a casaccio (sopratutto le attività industriali) o non hanno aggiornato alcune strade che negli anni hanno subito delle modifiche. Nella mappa OSM spesso gli elementi hanno dati non presenti in nessun altra mappa come contatti, siti e addiritura le partita iva. Visto tutto ciò quindi posso affermare, senza timore di essere smentito, che OSM è al momento la mappa non tecnica/professionale più completa ed aggiornata di Verderio Superiore oggi disponibile in rete.

Molti si chiederanno perchè aggiungere così tanti dettagli in un area così limitata quando alcuni comuni limitrofi non hanno neanche le strade con i nomi. A questi rispondo che l'idea alla base di una tale mappatura era mostrare le potenzialita di osm (tra l'altro ancora non espresse a pieno) per convincere altri a contribuire nelle aree che hanno necessità. Con OSM dettagli e la qualità possono raggiungere benissimo ottimi livelli al pari o, addirittura, superiori a quelli di altri più noti servizi online, e questo anche se frutto del lavoro di un solo volontario non professionista nel settore delle mappe.

I prossimi passi saranno aggiungere le attività produttive della zona dell'ex comune di Verderio Inferiore e dopo dedicarmi alla mappatura delle aree private, elementi naturali (come copertura del terreno, alberi...) degli ostacoli (kerb, gate, wall, hedge ecc ecc) e corredare il tutto con i dati di apertura oraria delle attività. In un futuro non troppo lontano punto a dedicarmi alla mappatura 3D, Indoor e forse addirittura inserire anche i riferimenti per il TMC

Buona mappatura a tutti ;)

by Aury88 at November 22, 2014 05:32 PM

OS Locator update 201411

Ordnance Survey have recently released their November 2014 version of OS Locator, the comprehensive gazetteer for GB. According to my calculations there are 12,201 new or changed entries and 10,203 removed entries since the last release in May.

I've updated my comparison tool Musical Chairs with the new data. New entries tend to show up prominently in the "recent relevant updates" view mode for a week or so after an update, so this is a good way of taking a look at what's changed in your area.

I'd suggest GB mappers take a look at their area, even if not for the purpose of mapping - new releases of Locator often reveal some interesting things about new building projects and developments.

OS Locator Musical Chairs screenshot from 20141122

Additionally, I've recently added RSS feeds to musical chairs to make it even easier to monitor your area for possibly problematic changes.

by robert at November 22, 2014 12:23 PM

OSMBlog (German)

Wochennotiz Nr. 226

11.11.–17.11.2014

Die Änderungen der letzten Woche

Die Änderungen der letzten Woche [1]

In eigener Sache

  • Wie angekündigt, haben wir die Themenblöcke anders – wir denken sinnvoller – bezeichnet. Wir listen in dieser Ausgabe am Ende alle Kategorien und unsere Ideen dazu auf und würden uns über Feedback freuen. Aber jetzt erst mal zu den Meldungen …

Mapping

  • [1] Martin Raifer zeigt mit dieser Darstellung die aktuellen Änderungen der vergangenen Woche in einem Gebiet an. Je älter der Beitrag, desto dunkler die Farbe. (via @JLZIMMERMANN)
  • Für die Daten des US Forest Services gibt es nun einen Tile Layer, den man in ID/JOSM und Potlatch einbinden kann. Die Daten enthalten Informationen über Straßenbeschaffenheiten und wichtige Punkte.
  • User Zverik beschreibt mögliche Verbesserungen des Walking-Papers Werkzeuges, die er gerne implementiert sehen würde.
  • Ein schönes Ergebnis der SotM 2014 in Buenos Aires: Auf der talk-latam Mailingliste organisieren sich die Lateinamerikaner um das Amazonasgebiet gemeinsam besser zu mappen.
  • OpenCage Data veröffentlicht ein Interview mit David Overton, dem Macher hinter der Stoffkarten produzierenden Firma Splashmaps. (via Twitter)
  • Nach Zeitungsberichten werden 89 Filialen der Fast-Food-Kette Burger King in Deutschland nicht mehr beliefert. Das bedeutet, dass sie umfirmiert oder geschlossen werden. Eine Liste der betroffenen Filialen ist hier abrufbar (Quelle: Wikipedia. Wir meinen: Eine Überprüfung entsprechender POIs in der OSM-Datenbank bietet sich an.

Importe

  • Ein “Dutch” Adressimport ist fertig. (via cq94)

OpenStreetMap-Foundation

Veranstaltungen

Humanitarian OSM

Karten

  • Die bisherige Karte parking.openstreetmap.de ist zur Zeit auf parking.crite.net zu finden.

Open-Data

Programmierung

  • Graphhopper, eine Bibliothek zur Berechnung von Routen, ist nun auch für iOS verfügbar.
  • User Zverik hat BigMap2 veröffentlicht, der Nachfolger von BigMap. [direkt zur Karte]

Weitere Themen mit Geo-Bezug

Wochenvorschau

Termine vom 20.11.2014 bis 27.11.2014

Ort Name Datum
Augsburg Stammtisch 20.11.2014
Lüchow-Dannenberg Stammtisch 20.11.2014
Innsbruck Stammtisch 20.11.2014
Nürnberg knf-kongress 23.11.2014
Bremen Stammtisch 24.11.2014
Essen Stammtisch 25.11.2014
Düsseldorf Stammtisch 26.11.2014

Hinweis:
Wer seinen Termin hier in der Liste lesen möchte, trage ihn in den Kalender ein. Nur Termine, die dort stehen, werden in die Wochennotiz übernommen.

Und jetzt die neuen/alten Themenblöcke

In eigener Sache

  • Änderungen am Blog, der Wochennotiz oder Themen, die uns/euch betreffen.

Wochenaufruf

  • Der aktuelle Wochenaufruf und die Reaktionen darauf.

Mapping

Das wird die größte und wichtigste Kategorie mit z.B.

  • Qualitätssicherung
  • Editoren
  • Karten für Mapper
  • Mappinghilfen
  • Tagging

Importe

  • Angekündigte Importe, Diskussionen davor und danach, automatische und halbautomatische Edits

OpenStreetMap (Foundation)

  • Auch weiterhin wollen wir über die OSMF, deren Chapter und Workinggroups berichten. Auch der Fossgis, osm.ch und osm.at sind Thema.

Veranstaltungen

  • Ankündigungen mit Veranstaltungen, Meetups und deren Nachbesprechungen.

Wochenvorschau

  • Alle Termine für die nächste Woche aus DACH, die im Kalender stehen.

Humanitarian OSM

  • HOT
  • MissingMaps
  • Ushahidi

Karten

  • für auf OSM basierende Spezialkarten
  • aber nicht für irgendwelche 08/15-Karten, die osm.org-Tiles oder Mapbox nutzen.

Open-Data

  • Freigabe von Daten für z.B. die Hausnummernliste
  • Beispiele zur Nutzung von OpenData

Lizenzfoo

  • kann man überfliegen

Programme

  • Software zur Nutzung von OpenStreetMap-Daten, die aber noch keine Programmier- oder Terminalkenntnisse erfordert

Programmierung

  • hier geht in den Tiefen von OSM

Weitere Themen mit Geo-Bezug

  • keinen direkten OSM-Bezug, aber dennoch erwähnenswert
  • Businessmeldungen

flattr this!

by Wochennotizteam at November 22, 2014 12:10 PM

ШТОСМ

Приключения белорусов в России

Неделю назад русские и западные техноблоги облетела новость: компания Mail.Ru Group купила проект и команду Maps.me. Это хорошо для нашего сообщества не столько перспективами от покупки, сколько немедленным зарядом пиара: руководители Maps.me не забывали упоминать OpenStreetMap в каждом интервью, и ни одна новость не обошлась без описания нашего проекта. Правда, всплеска посещаемости мы не заметили.

Приложение последний раз упоминалось здесь в июне под старым названием MapsWithMe — с тех пор у него поменялись название и разработчик в Google Play, появились адресный поиск и прокладка маршрута. Ближайшие планы связаны именно с их улучшением: так, роутинг на основе OSRM хотя и требует непривычно мало памяти, пока не умеет строить трансграничные или пешеходные маршруты.

На портале my.com, для которого куплен проект, Maps.me будет отвечать за всю картографическую часть: не только мобильные приложения, но и веб. Вероятно, появится какая-то карта на каких-нибудь популярных тайлах, чтобы можно было посмотреть, дать ссылку, открыть карточку POI. В отличие от Яндекса, тут не будет сотенной армии менеджеров и дизайнеров: Mail.Ru предпочитает маленькие группы а-ля стартап, которые не будут притворяться пальмой, по два-три года скрывая процесс разработки. И Maps.me, команда о 17 сотрудниках, не обременённая чрезмерно известным названием, вписывается как нельзя лучше. Почему Mail.Ru не боится OSM, хотя раньше, для своих карт, решила платить Геоцентру? Возможно, благодаря инициативе «Спутника», или тому, что наша лицензия сейчас понятнее, чем пять лет назад.

Отдельные участники нашего сообщества считают покупку плохим знаком для Maps.me: вероятно, финансовые влияния здорово продвинут приложение в первый год, но затем — стагнация без шансов развиться в крупный отдел, увод программистов и продажа кому-нибудь менее привередливому. Будущее проекта непонятно, но плюсы для сообщества OpenStreetMap будут очень реальны: Mail.Ru теперь может спонсировать картографические массовые мероприятия, вроде конференций, название проекта не будет замалчиваться в рекламных материалах, в отличие от «Спутника», и одним из направлений развития приложения станет добавление и исправление данных OSM: от сообщений о неточностях и записи треков до редактирования свойств некоторых POI.

В следующий четверг сооснователь Maps.me, Александр Золотарёв, придёт на OSM Радио, расскажет про планы, соберёт пожелания и ответит на вопросы. Компания также ищет новых сотрудников: прежде всего, программистов на C++ со знанием OpenGL и алгоритмистов.

November 22, 2014 10:33 AM

November 21, 2014

"OpenStreetMap.org User's Diaries"

绍兴开运输费发票

咨询【电话:13631636259 鲁经理 QQ:778080542】,【100%税务局领购真票】★★★★★可代开项目:普通增值税,运输票,建筑业、机动车销售,海关票,咨询费,住宿费,餐饮费,劳务费,服务费,房屋租赁,办公用品,商品销售,维修费,物业管理,建筑材料,材料费,工程款,设计费,制作费,会务费,定额,房租费,汽油,会议费,煤炭,旅游费,服装费,医疗费酒店,广告业等等其它项目。

by 【联系13631636259鲁经理】 at November 21, 2014 09:12 PM

宁波开运输费发票

咨询【电话:13631636259 鲁经理 QQ:778080542】,【100%税务局领购真票】★★★★★可代开项目:普通增值税,运输票,建筑业、机动车销售,海关票,咨询费,住宿费,餐饮费,劳务费,服务费,房屋租赁,办公用品,商品销售,维修费,物业管理,建筑材料,材料费,工程款,设计费,制作费,会务费,定额,房租费,汽油,会议费,煤炭,旅游费,服装费,医疗费酒店,广告业等等其它项目。

by 【联系13631636259鲁经理】 at November 21, 2014 09:11 PM

沈阳开运输费发票

咨询【电话:13631636259 鲁经理 QQ:778080542】,【100%税务局领购真票】★★★★★可代开项目:普通增值税,运输票,建筑业、机动车销售,海关票,咨询费,住宿费,餐饮费,劳务费,服务费,房屋租赁,办公用品,商品销售,维修费,物业管理,建筑材料,材料费,工程款,设计费,制作费,会务费,定额,房租费,汽油,会议费,煤炭,旅游费,服装费,医疗费酒店,广告业等等其它项目。

by 【联系13631636259鲁经理】 at November 21, 2014 09:10 PM

上海开运输费发票

咨询【电话:13631636259 鲁经理 QQ:778080542】,【100%税务局领购真票】★★★★★可代开项目:普通增值税,运输票,建筑业、机动车销售,海关票,咨询费,住宿费,餐饮费,劳务费,服务费,房屋租赁,办公用品,商品销售,维修费,物业管理,建筑材料,材料费,工程款,设计费,制作费,会务费,定额,房租费,汽油,会议费,煤炭,旅游费,服装费,医疗费酒店,广告业等等其它项目。

by 【联系13631636259鲁经理】 at November 21, 2014 09:08 PM

I'm fed up with all this spam on the RSS feed, especially Chinese

Administrators, please stop them. Hundreds of posts of Chinese spam, not to mention companies who also put advertisements here. As much as there are sometimes interesting posts, most of them are spam, so I'm stopping following this thread. So long!

by cypriend at November 21, 2014 08:00 PM

Wał Wiślany do wykorzystania dla WTR

Na odcinku Łączany-Brzeznica{Pasieka} dorysowałem jako droga czwartorzędna nawierzchnie wału Wiślanego,wał ten pokryty jest szutrem ,można dodać go do szlaku WTR bo nieopodal przebiega tutaj szlak WTR .

by Adam_Piszczek at November 21, 2014 07:55 PM

Озёра

Почему Ладожское , Онежское озеро, Великие Американские озёра, Каспийское море видны при любом масштабе, а, например, Байкал или оз. Виктория в Африке - только при сильном зуме? (Хотя озёра очень большие) Может надо исправить?

by k_novoch at November 21, 2014 04:50 PM

Gregory Marler/Living with Dragons

Lost In Piles Of Maps

Towering collection of books forms the King's LibraryAs a computer scientist, the library isn’t where you should expect to find me. As a lover of data, records, and history, I’ve always enjoyed going into a basement room to see the archives of the magazine I worked for or the collection of papers a university holds. So when I was down in London and the British Library requested some help finding maps in their public domain image scans, it was the special tours that got me along to their tag-o-thon.

The group of less than 10 got a tour of the library’s most spacious reading room, the map reading room. Staff had laid out a few samples, and a few were enough. It was hard to keep moving on and listening to the introductions as us map fans just stared and ogled at the detailed and varying pieces in their collection.

We then weaved through the staff-only corridors and into their “processing room” which was stuffed full with nothing other than piles of large flat boxes containing maps waiting to be catalogued. Some stuff delivered as “legal depository” for copyright reference, other boxes donated from disbanded archives of institutions. Claustrophobic folk might not like it, but I’d think it wonderful to work in that room squeezing between boxes and over time peering into each one to see what and where it reveals. Next to the processing room was the “stamping room”, which isn’t where staff let off steam with their feet. Every item coming in gets an ink stamp in a colour that relates to why the library has it in their collection, be that legal depository, donation, or some other purposes.

Goad fire insurance map.The highlight of the whole tour for me was two fire insurance maps they laid out in the stamping room. These maps dated from the mid- to late- 1800s and were created by Charles E. Goad to aid insurance companies in assessing the risk of fire. A complex set of line styles and abbreviations are used to show wall materials, openings, building use, number of floors, and other structural aspects. Printing at this time was expensive, and so rather than Goad sending out a whole new map revision to the insurance companies he would just send them small pieces of paper to cut out and stick on, sometimes these were just parts of a building. The copies the library had laid out for us were curling at the edges and had several amendments stuck on, some even on top of other amendments. This fascinated me, it was a test of my restrain not to touch the map and then peel of the additions to reveal the history just like you might take off peeling paint and discover the past colours of a room.

After the tour, we had a group of about 25 people in total, volunteering to help find and tag maps in the British Library’s image collection that had been scanned and uploaded to Flickr. It reminded me of when I had a weekly job to check every article of a magazine had been transferred to the website successfully. It only takes a moment of a human eye to see what it is and add the “map” tag, but you get drawn in to admiring the quality and history and perhaps wondering where it is. The tagging project is now over 50% through checking the scanned images, and it seems so far that this has found over 70,000 maps, it will now be possible to georeference them so they can be matched to their location and paired with modern day maps or against each other.

Detail of a Goad mapWhile we were trawling through the images and tagging away, they had a few talks including one from the interesting Stroly team who promised to release a free version of their app in a few months. The library staff also laid out some scanned copies of maps that had been requested and never collected. It made the day extra special to leave the British Library with a pair of A0 maps of Greater London that I will later hang on my walls. From those maps it’s humorous to enjoy the idea that a few farms away(not sprawling London suburbs) from where I grew up is simply marked “Heathrow Aerodrome”.

Than you to Kimberly Kowal at the British Library for the day and for later providing me with photographs of the Goad maps.

by Gregory Marler at November 21, 2014 04:40 PM

"OpenStreetMap.org User's Diaries"

A situação das traduções ao pt-BR no OpenStreetMap, edição 10

Um relatório sobre da situação das traduções das ferramentas ao português brasileiro, que mando periodicamente à lista talk-br.

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

HOT Tasking Manager - 100% https://www.transifex.com/projects/p/osm-tasking-manager2/

ID - core - 100% https://www.transifex.com/projects/p/id-editor/resource/core

Keepright - 100% https://translations.launchpad.net/keepright/trunk/+pots/keepright/pt_BR/+details

Merkaator (templates) - 100% https://translations.launchpad.net/merkaartor/trunk/+pots/templates/pt_BR/+details

Site do OpenStreetMap - 100% http://translatewiki.net/w/i.php?title=Special:MessageGroupStats&group=out-osm-site

GraphHopper - 100% http://bit.ly/1CM61na

Mapillary - Incompleto https://github.com/mapillary/mapillary_localization/blob/master/locales/pt-BR.coffee http://www.diffnow.com/?report=13g08

ID - presets - 99% https://www.transifex.com/projects/p/id-editor/resource/presets

JOSM - 98,3% https://translations.launchpad.net/josm/trunk/+pots/josm/pt_BR/+details

OSMAnd - Não há pt-br https://hosted.weblate.org/projects/osmand/main/ https://github.com/osmandapp/OsmAnd-resources/blob/master/voice/pt-br/ttsconfig.p

Merkaator - 93% https://translations.launchpad.net/merkaartor/trunk/+pots/merkaartor/pt_BR/+details

Overpass Turbo - 84% https://www.transifex.com/projects/p/overpass-turbo

Taginfo - Incompleta https://github.com/joto/taginfo/blob/master/web/i18n/pt.yml diff: http://www.diffnow.com/?report=jc27x

CheckAutopista - Não há pt-br https://github.com/k1wiosm/checkautopista/blob/master/lang/translations.js#L191-L227

by vgeorge at November 21, 2014 02:44 PM

Being a newbie

This is story is based on real stories. It is not my story as a newbie, but I decided to write in the first person to avoid she/he discussions. Also, since English is not my native language, so I apologise upfront for mistakes.

I love to ride by bicycle and for plannng my trips I found those great free maps offered by OpenFietsMap. I used them during my vacation in The Netherlands and now I want to improve the map for cyclists in my hometown in Belgium.

I created an account on OpenStreetMap and quickly found out how I could launch the iD-editor. It seems pretty simple to add a separate cycleway, just as I saw on the map in The Netherlands. I think it is important to see the difference between street with and without those separate cycleways. So let's try to add them.

O great, there are arial images that I can use, so I do not have to upload tracks that I recorded with my GPS. OK, let's see, the cycleway starts here, in front of those houses. So I start drawing the line there and continue here, cross the street and it ends here in front of this parking lot. Now add some tags to it...mmm .. a name... mmm maybe "fietspad" (Cycleway in Dutch).

Ok, now the other side. Mmm, the houses that the previous mapper placed are on top of the cycleway. I'll move them so I can draw the cycleway in the correct place.

Hey, that was easy, let's save this so the others can enjoy my work. O, do I need to add a comment... mmm ... "Fietspad" will be ok I hope.

So far the first editing session from an newbie user as I see it. The user honestly tried to improve the map. But could you spot some mistakes ? Here are some

  • the cycleway is not connected at start or end
  • The cycleway has no intersection with the street that it crosses
  • It's tagged with a name that indicates its function
  • the user did not put bicycle=use_sidepath on the main street
  • the user did not remove any cycleway= from the main street
  • the user is unaware of relations for cycle routes on the main street that have to be placed (and splitted for the different directions) on the cycleways
  • the user did not add oneway=yes on the cycleway
  • using Bing images which have an offset, in Flandres we can use AGIV, much better

Not all of those mistakes are made by all newbies and maybe they make some I forgot to mention here. But that is not important for the message I want to bring. One can make many mistakes and none of the editors protect you from making no errors. Some editors protect you from some of the above errors, but many mistakes pass unnoticed.

But now dear experienced mapper,

How do you react when this happens in your neighborhood ?

Do you

  • yell "vandalism" ?
  • contact the DWG ?
  • start complaining on a local maling list about this user that destroys all this hard work ?
  • send a angry private message or changeset comment ?
  • do you ally with your friends to send multiple scaring changeset comments ?

or do you take a deep breath, relax and try to write a friendly, polite message to help this newbie navigate through all the pitfalls and unwritten rules from which the editors do not protect you ? Even if you have to do this for the tenth time ?

So think for a moment how it feels to be a newbie and receive a message from some stranger about something you honestly thought was a good addition to OpenStreetMap, next time you write a comment about someone else work. Heck, even when that person is a more advanced mapper.

Happy mapping & communicating

p.s. I fear that the real story that was the basis for this one does not have an happy ending

by escada at November 21, 2014 12:11 PM

Bitcoin "spam" flowers

Just discovered this POI, someone offering lessons in mathematics and accepts bitcoin. Apparently he is living in the middle of the street: http://www.openstreetmap.org/node/3197308571

by dieterdreist at November 21, 2014 10:32 AM

tareas.openstreetmap.co y aerofotografía para calcar

Recientemente Leonardo Gutiérrez abrió http://tareas.openstreetmap.co , hace un tiempo lanzamos http://test.openstreetmap.co para poder integrar y facilitar la labor de mapeo y en reunión del fin de semana anterior las dos ideas pudieron converger.

Ahora en la lista se lanzó la iniciativa para que los colaboradores de talk-co pudieran tener a su disposición trabajo abundante para hacer :).

Iniciamos con Casanare y seguramente con JOSM y el espectacular Fast Draw en poco tiempo tendremos el mapa con mejores datos para que otras organizaciones e individuos puedan hacer con facilidad estudios sociales y en regiones del país.

by ikks at November 21, 2014 03:02 AM

mkgmap

Crash on compiling recent south american OSM maps.

A recent change to data in Columbia, South America in Open Street Map may cause a problem when creating a map of that area.

There is a long standing bug in mkgmap that results in a crash when compiling the object http://www.openstreetmap.org/way/313259878 which is in Columbia. The addr:housenumber is ":702" which triggers the bug. Probably that is just a typo and it should be just "702", however this should not cause a crash in mkgmap.

The problem is now fixed in r3354, so you should upgrade if affected by this problem. I think you will only see it if using the --add-pois-to-areas option.

Due to the nature of the fix, the resulting .img files may be a little smaller than before.

November 21, 2014 12:00 AM

November 20, 2014

"OpenStreetMap.org User's Diaries"

OSM is useless ;)

What's the use of OSM if a "books=comic" request (http://wiki.openstreetmap.org/wiki/Key:books) on the London area via Overpass Turbo returns only two buildings as a result ?!

Will I have to use a frakkin' G00gle m*ps kml export to get those shops into OsmAnd ?!!!

SNIKT!

by EddieJ at November 20, 2014 10:41 PM

LGeek

Site d'actualité tech et info LGeek

by LGeek at November 20, 2014 12:14 PM

November 19, 2014

"OpenStreetMap.org User's Diaries"

Gently restarting the MD DNR Parks Import

Last year I began importing Maryland Department of Natural Resources lands but my progress slowed as I reached the populated areas of Central Maryland. Today I have restarted the process a bit with a custom translation for Paul Norman's ogr2osm tool.

Here are some beautiful new parks on the map:

Adding the parks is fairly manual but produces great looking map data. Let me know if you want to help out!

by ElliottPlack at November 19, 2014 05:57 PM

19. November 2014

Hallo, heute habe ich sehr viel an der Namibisch Botswanischen Grenze gearbeitet. Insbesondere die Grenzwege habe ich auf einer Länge von etwa 110 km gemappt.

Schönen Abend.

Geoallrounder

by Geoallrounder at November 19, 2014 04:57 PM

iD Editor - Translation QA tools, Determine Duplicate Elements, Export translated presets to CSV

I have created a working prototype ( https://gist.github.com/ImreSamu/18fd1a419e514642ed4b ) for

Detecting duplicate translations.

Export presets to CSV ( example hungarian output imported to google sheets :

I think it is very useful for me and the small hungarian community for detecting translations problems, and errors.

I have created a proposal for a similar service for helping translators: https://github.com/openstreetmap/iD/issues/2448

------ added:

some new languages examples:

my code not working for Korean and Japan language :(

by ImreSamu at November 19, 2014 04:54 PM

gpx trace

how to upload a gpx trace to open street map as a road ? i mean without redrawing it to be a road. can i do it ? if yes, how ?

by Toni Dagher at November 19, 2014 04:30 PM

reef=?

hei there,

i want to add subsea reefs with different discript. so as: natural=reef reef=coral or Reef= sandbank or reef=Stone

what du you think about it ???????? for OpenStreedMap if we make a boattrip

see Madagascar Antiranana Mer d'Emeraude ia a subsea-sandbank

by

by roki at November 19, 2014 01:08 PM

OSMBlog (German)

Wochenaufgabe KW 47/48 Fahrspuren mit Richtungsangabe erfassen

Die Idee kam in Schwung, weil Telenav für den Scobbler-Nachfolger Scout auf Basis der OSM-Daten gerne eine Spurassistenz anbieten will, aber behauptet, dass bei OSM mehrere Straßenspuren bisher nicht erfasst seien. (Quellen: Telenav-Artikel und im Forum)
Daraufhin trat ich im Forum einen neuen Thread los. Dort waren viele dafür, die Erfassung von Fahrspuren zur Wochenaufgabe zu machen, um das Thema zu pushen.

Zwar gibt es weltweit schon gut 125.000 ways, die mit den turn:lanes-tags versehen sind, aber soweit ich sehe, hängt die Masse davon (zumindest in Deutschland) an Autobahnen und überregional wichtigen Straßen. Aber in Innenstädten, wo durch die Verkehrsdichte und Komplexität der Spuren eine Information für Ortsunkundige wichtig ist, fehlen oft Angaben zu Fahrtrichtungen der Spuren. Entsprechend programmierten Routern fehlen somit diese Informationen. Deshalb sollten die Fahrtrichtungsangaben über turn:lanes-tags möglichst umfassend ergänzt werden. So können OSM-Daten noch interessanter für Routing-Software werden.

Wenn man sich einmal über einfache Fälle in das Erfassungsschema für Richtungsangaben durch turn:lanes eingearbeitet hat, ist die Eingabe der Daten in OSM auch ohne Erfassungstool möglich. Allerdings ist die Suche nach den entsprechenden Informationen in der Wiki für Einsteiger in dieses Thema eine möglicherweise hohe Hürde. Deshalb habe ich im erwähnten thread eine Diskussion angeregt, in der Hinweise und Hilfestellungen gesammelt wurden.

Diese habe ich bei meinen Tipps für die Erfassung eingebaut, welche hier als PDF abgelegt und einsehbar sind. Ich habe mich dort über vier Seiten auf die wesentlichen Dinge konzentriert, durch welche die Masse der Fahrspuren mit Richtungsangabe erfasst werden kann. Wenn sich das bewährt, schreibe ich es gerne fort. Für Anregungen dazu bin ich dankbar und vielleicht wird ja mal ein richtig umfangreiches howto für’s Wiki daraus.

Download (PDF, 452KB)

Nach dem Start der Wochenaufgabe ist es natürlich interessant, wie sich das entwickelt. Ein grafische Auswertung dazu will ich möglichst täglich für DACH fortschreiben
Diagramm-Link

Aber jetzt gilt erst mal:
Keine Angst vor der Erfassung von Daten, die für die Fahrspurassistenz von Routern brauchbar sind.
Wir werden die Behauptung, die Daten in OSM reichten für eine Spurassistenz nicht aus, widerlegen!

flattr this!

by hurdygurdyman at November 19, 2014 10:07 AM

November 18, 2014

"OpenStreetMap.org User's Diaries"

A Proposal to improve the OSMF by Separating Out the Board from Officers

A great deal has been said about the OpenStreetMap Foundation and its issues with effectiveness and interpersonal relationships. In this post, I will outline a proposal which I believe will address both the effectiveness and the interpersonal issues of the board, and result in better results for the Foundation and therefore project as a whole.

One area of commonality in OpenStreetMap is that of favoring doing rather than talking. We're a project that exists because individuals take on tasks themselves, whether that's mapping, software development, project management, documentation, etc. Each OSM contributor knows and understand the value in individual contribution.

But this is not how the OSMF governs itself. Instead, the OSMF uses a committee model. This is despite the fact that we know how generally ineffective committees are. We collectively laugh at jokes about committees and meetings, and yet we have asked our Foundation to use the committee model for its decision-making.

The mechanics of why we have the committee model is that the OSMF board members are also its officers. In other words, when selecting a treasurer or secretary, the board must select one of the seven board members. This has two effects.

Firstly, it means that the board's candidates for who best to fill a given position are limited to a candidate pool of seven, or less, depending on which positions are already filled, or which candidates self-select for a position.

Secondly, it creates a situation within the board that the officer positions are somewhat symbolic. The OSMF Chairman is Chairman, but has no more authority than any other board members.

I propose that we separate the officer positions from the board and instead have the board appoint officer positions such as an Executive Officer and a Financial Officer. These appointed officers would have relative freedom to run the OSMF, and they would report to the OSMF board.

These appointed officers would have a great deal more flexibility than the current officers. The Executive Officer, for example, would be able to lay out his/her qualifications and vision for the organization and let the board elect them, much like is done in many corporations and existing non-profits.

The officers would need to report to the Board any activity, and they would need to be re-elected annually. By having the officer position separate from the board, the Foundation would have the flexibility to either increase the frequency that it changes officers (based on performance), or favor continuity and re-elect the same officer if they've done a good job. Special rules could be drafted in case of an emergency need to replace an officer, of course, but generally the officer would be someone that would represent the board's vision for the Foundation, and the board's vision would be reflective of the OSMF membership as a whole, as board members would continue to be elected the way they are today.

The elephant in the room of this discussion is whether or not these officer positions would be paid. I think that is a question of vision, left up to the OSMF Board. If the Board believes that the Foundation should move in that direction, then it should have the flexibility to pay an officer and or allow an officer to pay for services. On the other hand, it could remain the same. But by separating out the officers from the board itself, we remove the issue of whether or not the board itself should be paid. The board would remain volunteers, thereby reducing or eliminating conflicts of interest.

In summary, separating the officer positions from the board would lead to:

  • Greater Flexibility
  • Greater Transparency
  • Less Bureaucracy
  • More Accountability

And generally a more nimble and agile OpenStreetMap Foundation.

I would like to see this turned into an official proposal by the board.

by emacsen at November 18, 2014 03:53 PM

OSM/Wikipub

I morgon är det Wikipub http://sv.wikipedia.org/wiki/Wikipedia:Wikitr%C3%A4ffar#Wikipub.2C_Stockholm.2C_onsdag_19_november

Wikipedianerna är ett trevligt gäng att umgås med, så jag tänkte gå dit och om det är någon annan OSM:are (nybörjare eller gammal räv) som vill hänga på så är det bara att dyka upp. Så kan vi ha ett litet ex-tempore osm-träff.

by Snusmumriken at November 18, 2014 09:21 AM

November 17, 2014

"OpenStreetMap.org User's Diaries"

Hey, Bryce! Bike repair!

And this one was inspired by Bryce's mailing list post.

amenity=bicycle_repair_station

This one is at the Roundhouse in Toronto at the foot of the CN Tower.

Node 3192087354

Cool stuff, thanks for starting this Bryce. :-)

by Be A Mapper at November 17, 2014 09:14 PM

Bike parking

Updated some bicycle infrastructure near the Roundhouse in Toronto.

bike share toronto station at the roundhouse

Relocated the bike share stand per Bing imagery, it's on the north side of that enourmous vent. And changed name to operator, and the old Bixi brand to the current Bike Share Toronto.

Oh, hey, and more post and ring bike parking too.

by Be A Mapper at November 17, 2014 09:07 PM

Project #OSMselfie: Put a human face on edits

I'm writing a new OpenStreetMap presentation and I'm looking for images for my slide deck. Ideally, images of happy mappers and the things that they are mapping and improving in OpenStreetMap. Even better, would be mapping things that are typically way better in OpenStreetMap than in other sources.

An Example

This edit reduced the extent of a parking lot because it is now fenced for imminent construction of a new condo.

and this is the #OSMselfie I took during the survey

Surely you can do better

Go ahead and post your #OSMselfie survey pics.

If you really want to help me with my slide deck, I'm looking for photos that illustrate the people in OpenStreetMap who make a difference by improving local data for others. So if you mapped a new accessibility ramp on a building, or a new public bike rack, or a new playground, or anything else awesome and wonderful. I'd love to have your photo, and your wonderful visage in my slides.

Please feel free to do a better job with the photography than I do. :-)

Best regards and happy mapping,

Richard

by Be A Mapper at November 17, 2014 07:08 PM

О себе

Все как у всех - родился, учился, служил и т.д. Это не интересно. Работаю в компании, которая производит электронные спортивные табло. Тут мне повезло, т.к. всю рабочую жизнь занимаюсь электроникой. Компания небольшая, отличный коллектив. Производим табло для футбола, хоккея, бассейна, да для всех видов спорта, от простых до профессиональных, любого уровня сложности. Называется ДИАН - Электронная продукция. На всякий случай пишу адрес сайта www.elpn.ru

by Петр Леонов at November 17, 2014 04:37 PM

OpenStreetMap this week in Bengaluru

If you're in Bengaluru this week, here are two events you shouldn't miss:

I will be at both events with my colleagues Shiv and Eric - looking forward to catching up!

On Lazar Road heading towards Coxtown Circle, Bengaluru

by lxbarth at November 17, 2014 12:22 PM

I am a bit less of a leech on OSM

Changes I made in Kenya (Left: Mapping work I did as part of the OSM Mapathon Right: a map of Africa centered on the area where I made my change)

I owe a lot to OpenStreetMap (OSM). Some of the projects I am most proud of having worked on in my career would not have been as possible or as cool without it. Since OSM is a contribution dependant project, it is natural that I would have the urge to give back. I have been working with OSM data in one way or another since 2010, but surprisingly this weekend, near the end of 2014 was the first time I actually edited a feature.

I think the main reason I didn’t contribute until now was fear of messing something up. The OSM community has done a great job building user-friendly tools and tutorials, but there was still a little fear that my first edit would somehow break something.

So, what was different this time?

This Saturday, Alan McConchie, a fellow Stamen and renowned mapping mensch, hosted a mapathon event in the Studio. He assured us that if we go, there will be patient people and achievable tasks for all. Saturday I arrived and listened to a quick explanation of the editors available to us. At first I was intrigued by the description of JOSM, which is an installable application. Usually authoring tools which you actually install have a much better workflow than ones you use through the web. The cloud is great but I still prefer to load my spreadsheets in Numbers over Google Apps and my Mail in a client instead of a web browser. In this case however, I ended up being a lot happier with the iD editor which is a web application. iD is integrated into the openstreetmap.org workflwow as well as nicely designed and implemented. The options are simple and powerful, which exactly what you need as a beginner. JSOM is packed with time-saving tools and indispensable workflows, but it is not made the novice in mind.

With an editor selected, I headed to the HOT project list. This is a list of manageable mapping tasks which one can claim. Each tasks takes you to a specific place on the map in the editor of your choice, with specific and achievable tasks to complete. If you have been following along, so far I had patient people supporting me, iD empowering me to make edits, and now HOT is informing me on what exactly I can do to contribute. I had come close to editing in the past but it usually ended with me staring at a part of my hometown, or an area where I went on vacation, timidly hovering over a part of a Satellite image of a building or trail. This time I am being welcomed by the OSM community and being given measurable tasks to complete.

Over the two hours I spent on my task, I filled out a number of roads, buildings, and fields in a Kenyan town. This area had not yet been added to OSM and maps were needed for humanitarian efforts. Drawing these roads and buildings brought back childhood memories of taking my toy trucks into the yard as a kid and making roads from dirt and building little lakes and bridges with hose water and sticks. Later on, Sim City brought this kind of play to the next level and I was able to build whole simulated cities. I could spend hours watching them develop. This feels similar in a way only a bit more fascinating because you are tracing the result of actual human involvement with the landscape. This isn’t a simulation, you are tracing how roads and fields actually grew out across this valley in Kenya. Then you get to zoom out a bit and see how your map area interacts with areas others have mapped, as well as the rest of the mapped world.

At the end of my two hour session, Whitney came to pick me up so we could go to lunch. I encouraged her to take a moment to map one building before I shut down my computer and released the rest of my task for others to finish. She was sceptical this would be something she would enjoy and easily pick up. I quickly explained the editor, and a little about HOT, and showed her the outline of a building in the satellite imagery. Within minutes she outlined and classified a few buildings and completed a road I had begun. She committed them under my name and looked really satisfied with what she had accomplished. She said this is absolutely something she would do again.

This event made me so much more optimistic in the future of OSM than I already was. As time goes on we will get even better at empowering, informing, and supporting people to use their idle time to contribute to the worlds open data sources. There are lots of ways to use your idle time for good and some of them can actually be fun.

Originally posted on my blog.

by Eric Gelinas at November 17, 2014 05:50 AM

OpenStreetMap Weekly Update

weekly 225 – 04.11. – 10.11.2014

04.11. – 10.11.2014 Talk, Forum, Wiki & Blog [1]  Tom Hughes developed the new function “What’s that?” See the question mark on the right side on openstreetmap.org. The new function uses the Overpass-API. (via Twitter) The Open-Access-Publication Arial Delineation of Home Regions from Contribution and Editing Patterns in OpenStreetMap from Dennis Zielstra, Hartwig H. Hochmair, Pascal Neis and […]

by Andrew Chubb at November 17, 2014 01:13 AM

November 16, 2014

"OpenStreetMap.org User's Diaries"

Roadmap: A State of the Map for all communities worldwide

TLDR: click these links to play with South America OSM contributor statistics on a continental level, in detail. It's ready for the world. Or even easier, get a ready made report for a continent, a country or a region.

This is a writeup for the presentation I gave at State of the Map 2014. Slides available here (since it's such a bother to add images to diary entries, you'll have to refer to the slides for pretty pictures). You know about these motivationals saying things like "do one thing every day that scares you"? Well I did, and I wouldn't recommend it. So I'm thinking maybe a written version might be a little more coherent.

Intro

During my one year road trip through South America, I'm trying to do as many things OSM as possible. Of course, I'm navigating using Osmand, contributing tracks, notes and POI's along the way. I'm trying to convince other roadtrippers to use OSM, which in a lot of cases they're already using anyway. Making contributors out of them is harder: a lot of them seem to know they can, feel like they should, but just "haven't found the time to really look into it". Then recently, I did a presentation about OSM in Carmen Pampa, a village near Coroico, La Paz, Bolivia.

But mostly, I want the world.

The job I'm on a one year break from, revolves around generating and providing data in such a way that people can make their own analysis. In a lot of cases, that means taking GIS data or agregated statistical data and simplify them to a geographic neighborhood level. A quite literal example: count the number of green pixels within a neighborhood and devide them by number of people. So here's what I do: a bit of automation, some basic statistics, some self-thaught GIS skills, some translating problems back and forth between humans and database querying. I'm great at none of those, but I understand a bit of all these worlds.

At work, the area of interest is just the tiny metropolis of Antwerp. But the tools we use lend themselves to much wider scales.

So I though, during my trip, why not do the same thing a bit bigger? Antwerp is known for its big egos - and I have to admit I do fit in. So how about the world.

Global Openstreetmap Community Statistics

Slightly obsessed with statistics and with OSM, I felt a lack of mid-level statistics about OSM. Yes, we have some tools telling you how many people edited recently, etc. But there is no "state of the map" for any country, any region. There is a lot of opinion on new contributor mess-ups, or on imports - but few statistics to back it all up.

So here's the one-year plan: make a worldwide tool to see the State of the Map for any region, country and continent in the world.

Minor detail: I wanted to present it at State of the Map Buenos Aires, only half a year away. And it was much more complicated to work from my campervan than I thought. 3G is slow, expensive and often absent from the places we stayed. The amazing 12v-19v converter I found blew up the computer in Ecuador. A total loss in Europe, they fixed it for 100 USD in Quito - but there went another month. Also, I'm not a programmer, so I had to learn quite a lot - and have quite a lot to learn still.

I wanted to go beyond the ad hoc analyses you so often see. People are interested in Switzerland, France, South Africa. All these case studies bring interesting insights, but I wanted to provide the basics to all communities. From what profound research has tought is, we know that often it is enough to look at OSM data to know the quality of OSM data. For example: the easiest indicator of map quality is the number of people contributing.

There are some national OSM statistics available, I wanted to go beyond that. Of course, there are a lot of national communities, but being from Belgium, I decided the national level isn't ideal. And for countries like the US, Brazil or Russia, well, it's just not fair to only give them as much space as Liechtenstein is it? So I decided to go (with some exceptions) for the highest subdivision of countries.

I decided to use OSM as a base for the regions, I don't quite remember why, but I'm sticking to the theory that it was a matter of principle. The principle being: the more people actually use the data, the better it will become. At the time (say beginning 2014), these devisions were very far from complete. I started working on the problem where I could, even wrote a diary post about my cleaning experience. But of course Wambacher's wonderfull boundaries tool had the larger impact. There has been amazing progress in under a year, and now the only larger countries that have severe problems with their top level regions are:

Panama
Honduras
Portugal
Sri Lanka
New Zealand
Malaysia
Indonesia

Of course, people keep destroying administrative relations. Some of them because they're new and ID doesn't warn you about destroying relations. Rarely some vandalism. And often as well by very experienced users having an off-day I suppose.

It took me quite some time, but now I have a beautiful shapefile of the world with most all international conflicts resolved and anly a few regions claiming their neighbours territory. Yes, I can share this SHP.

Turning historical OSM data into statistics

I believe you can only understand where we are, if you know how we got there. And for a complete view of Openstreetmap evolution, you do need the history files. These contain every version of every thing that has ever existed in OSM - with some exceptions caused by the license change and redaction work. There is no easy way to work with these files. I had to learn how to translate these data into statistics. That meant learning a whole new world of Virtualbox, Linux, Osmium, History Splitter, PSQL. And I'll probably have to learn some C++ and R yet. I could never have gotten on with this whole project without the help of Ben Abelshausen and especially Peter Mazdermind, whom I've bothered enormously. I wrote a bit about these first steps (with links to Peter's tools) in my diary as well. If you like prety maps more than stats, you'll probably not make it back here again :)

The workflow so far, as suggested by Peter, is to cut up the world into small pieces, import them into PSQL and then make some queries. To cut up the world, I convert my regions shapefile to poly files using the OSM-to-poly for qGIS 1.8. So far, I have little more than a proof of concept. Let's take all data for an area, dump unique combination of users and start dates of objects and use SPSS to make some simple indicators.

So here are the first results, a complete basic statistics tool with data on a continental level but also in detail. It's completely interactive and ready for the world. Of course you can compare evolutions, but if you play around with the tool a bit, you'll see the possibilities are endless.

You'll be forgiving for not liking to 'play' with a tool like this, as most normal people don't. To make you're life easier, there's a reporting studio which gives you a ready made analysis of the evolution of contributors in a continent, country or region of your choice. This being SOTM Buenos Aires, the obvious examples are South America, Argentina and the city of Buenos Aires.

All the data in the tool is available for re-use: you can download xls or xml for any view you make, WMS services can be provided, you can remotely query a visualization and you can acces through a basic API.

The tool I've used for the online presention is closed source (I know), but is exactly what you need for a project like this. It was kindly provided by the Dutch company ABF Research.

From my experience at State of the Map, I don't feel like I made quite clear what is the importance of a tool like this. I'll try to give some more examples of what could be easily done with just OSM data.

  • You don't need any other sources than OSM data to get an idea about road network completeness, and how much is left to be mapped.
  • You could make statistics about how many map errors are open In more advanced countries, see how quickly landuse mapping is being completed
  • Does mapping peter out when the map gets more adult? Or is it the other way around, does more data imply more people using and contributing to even more data? Is there an exponential curve of map development. And dare I say, yes? (LINK)
  • How do imports really affect mapping? Is a country which starts of with a larg import likely to quickly grow a large community, or will it start to lag behind after a while?
  • Is the number of mappers proportional to people or to GDP?
  • Do most regions follow the same growth track, but just started of later? Or are there regions that will not ever get properly mapped without special outside attention?
  • Or something very specific: "does the probability of a new contributor becoming a recurring contributor increase if we contact all new mappers in our area"?
  • What does HOT attention do to local community development? Are people recruited through a HOT project more likely to keep contributing?

Any subject leads itself to the creation of indicators. How quickly do notes get resolved? Simple: count the number of nodes still open, three months after their creation. Then you can quickly compare the speedyness of note resolution in different regions. And maybe even adopt a region to watch some notes in. Or some investigator might decide to look into the dynamics of note resolution, and suggest better indicators.

The tool allows 1000ths of indicators to be easily managed and widely consulted.

A cry for help

As I kept saying at SOTM, I don't really know what I'm doing, and I would like some outside checks. I even admitted on stage that I'm a Potlach2 mapper. I'll say it again: I like Potlach. Aparently, that can earn you free beer. But it does mean I need help. I do think I will get some, but I'll take some more effort from my side. For example, I might get some scripts to get the road length out of a history file. I'm also going to look into some C++ scripts that Abhishek made. And maybe OSM France can set up a history server which might make life a bit easier on my poor computer.

Part of my lack of confidence at SOTM was that my numbers of contributors for a given country were much higher than a colleague investigator found. And after my presentations I saw some more numbers that frightened me. So the last week, I've been trying to figure out what went wrong. It turned out: nothing did. Wille from Brazil pointed out that user naoliv produces some statistics of number of contributors for Brazil - and mine where much higher. Only after a while was I sure that he didn't use the history files, but a current world snapshot, which is bound to creat some difference. But even then the differences were much higher than I would have thought. Here's some basic statistics (taken at a random moment beginnening of 2014):

6936 number in history files 5585 number in current world 178 known in current world, but not in the history files 1529 known in history files, but not in the current world dump

How can you be known in the current Brazil map, but not in the history files, as 178 people are? Well, I honestly don't know. Some random checking was in order. Most cases seemed to be people editing very close to the border of Brazil. I use the exact borders, whereas naoliv uses the Geofabrik dump which probably has a tiny buffer to ensure data integrity. But there were also some cases where I have no clue as to what causes someone not to show up in my dumps. Anyway, small differences are bound to arise in databases like this. You'll probably always get some noise in analysis like this - though mostly because of some deeply hidden error or bias.

Another 1529 have contributed to the Brazil map, but their work is not visible anymore at all. I though this not impossible, but still surprising large. Some random checking learned that these people did in fact contribute to Brazil at one time. Here are some statistics I found comforting:

Here we look at the percentage of people found in the history files, lost in the current version of the map. Overall, the number is 22% lost. But when we classify by number of added/touched nodes, you see the number is much higher for people with few edits. Which is exactly what you would expect if the cause of the difference is people's work getting overwited. If you have more edits, less chance that 'all will be lost'.

Percentage lost to current state
1-10    35%
11-50   13%
51-250  5%
251+    1%

The same goes when we look at the last year people have contributed to the map in Brazil. People editing in 2008 have 56% of not being visible in the current state of the map. Again, what you would expect if people's edits are overwritten. The longer ago you've contributed, the more probable that you're contribution has been lost.

Percentage lost to current state
2007    57%
2008    56%
2009    50%
2010    40%
2011    31%
2012    24%
2013    17%
2014    10%

This means that when you make contributor statistics, the difference between using history files and current world dumps are pretty high.

With this I'm feeling a lot more confident. I'm thinking to build up more in depth analysis first, and only then try and do the whole world. At least, further worldwide analysis will have to wait till 2014 is completed. That way I can work on history files that include the whole of 2014. I'll have my friends in Belgium download them :)

Here's a list of things I think I can manage, in rough order of how hard it will be, or how far I've gotten. WE could of course manage much more, much better, much sooner. But that means YOUR help. I should stop watching motivational posters.

  • cumulative number of contributors, or active contributors by year
  • number of nodes, ways, polygons (created, deleted, touched)
  • notes resolution
  • proportion of data contributed by 'local' contributors
  • number of mapped hamlets/villages/towns/cities
  • kilometers of roads by type
  • proportion of area covered by land use

I'm very interested in other suggestions. Especially if they come with a script that gets the numbers out of a OSHistory file.

by joost schouppe at November 16, 2014 09:34 PM

Shaun McDonald

The rise of the parent of young children cycle campaigner

Over the past few years I’ve noticed a huge rise in the number of parents, particularly of younger pre-teenage children getting involved with cycle campaigning. This was particularly evident in the discussions at the November 2014 Cycle Ipswich meeting, where several parents commented about the problems that they have with cycling locally with children.

One of the local parents has had abuse shouted at her for cycling with children in Ipswich, with several noting that some people see cycling with children as child abuse. Yet in other parts of Ipswich there are some of the highest levels of cycling to school in the country due to the quality of the cycle infrastructure. There are some schools where letting or encouraging your kids to cycle is seen as a bad thing, however it is simply the lack of a suitable cycling environment, or the head teacher and/or governors not understanding the cyclists often choose alternative quieter routes, that cannot be used by car.

An interesting comment by the local MP Ben Gummer at the meeting was that he felt safer cycling in London, than in Ipswich. My wife on the other hand has the opposite opinion. So if the local politician avoids cycling locally, when they will happily cycling in central London, what hope have we with other people?

Parents are increasingly concerned about the school run, the obesity crisis, and safety on the roads when their kids cycle. There is an increasing recognition that streets could be much safer to allow kids to be able to cycle, whereas currently there are so many barriers to getting good quality, segregated cycling facilities that allow everyone to happily cycle without a fear of being killed or seriously injured at some point on the journey. Fake “20s plenty” school safety zones don’t make the roads safe for kids.

thumb-2048-4

Of course one cheap solution, such as what is happening in Haddington, and Edinburgh, where the use of cars is banned on streets surrounding schools during school arrival and home times, would be much more likely to make it safer for kids.

I believe that the increasing number of people who are considering cycling with children as a mode of transport is helping to fuel the dramatic shift in cycle campaigning that has happened. There is still a long way to go until there is consistency by campaigners, council officials, and politicians in the recognition that the current infrastructure isn’t good enough, and there needs to be a dramatic improvement in the quality of the infrastructure to be able to get more people cycling.

by smsm1986 at November 16, 2014 09:13 PM

"OpenStreetMap.org User's Diaries"

Willkommen

Ich bin neu hier und möchte in Zukunft regelmäßig zu OSM beitragen. Ich nutze ein Garmin eTrex (aktuelle Version). Da ich noch eher ein Anfänger bin würde ich mich freuen, wenn es hier hilfsbereite Leute gibt :). Bis dann.

Mir fiel noch ein, dass ich bald auf einem Pokerturnier, der EPT in Berlin, sein werde und hier auch das erste Mal GPS Daten übertragen werde. Ich werde auf der Seite Pokercheck darüber berichten. Es ist übrigens auch ein nützliches Portal für den Vergleich der besten Pokerseiten. Es werden Spielangebot, Traffic und Willkommensbonusse der großen Pokerräume wie 888 Poker und Pokerstars getestet und die Ergebnisse der Tests übersichtlich dem Leser bzw. Pokerspieler zur Verfügung gestellt.

by route666 at November 16, 2014 08:03 PM

New MapRoulette challenge, Massachusetts Schools

This week, I created a new MapRoulette challenge, called "Massachusetts Schools".

Thank you Martijn van Exel, and Serge Wroclawski for making it possible (even easy) to add in your own challenges to MapRoulette. I used the loader python script, which requires a postgis database. It was just a couple of hours of fiddling with the SQL statement to make it work. I still hope to make small adjustments to the help and instructions text.

In Massachusetts, most of the schools were imported twice. Once from the national GNIS database import, and a second time from a statewide MassGIS data set. Both imported data sets are old and are getting stale. A surprising number of schools have moved, closed, or changed names since the data was imported. The schools need some attention.

Hopefully over the next 2 years, we will get them cleaned up.

We also plan on using this challenge in our local OSM OpenStreetMap-Boston meetup

by jremillard at November 16, 2014 06:52 PM

Cross-stitch OSM globe

Some more cross-stitch to complete but here's the early view of a globe based on OpenStreetMap data :-)

Globe

by Hawkeye at November 16, 2014 05:34 PM