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Import des lignes de base droites de la France métropolitaine

Posted by Damouns on 25 August 2015 in French (Français)

Le décret n°2015-958 du 31 juillet 2015 indique les coordonnées des lignes de base (à partir desquelles est mesurée la mer territoriale) de la France métropolitaine dont la Corse (il remplace un vieux décret de 1967 qui était difficilement applicable).

Dans le wiki on a la page Tag:boundary=maritime qui récapitule tout ce qui concerne les limites maritimes des pays.

Je les ai donc créées avec le changeset 33567453.

Location: 47,620, -3,463

From JOSM search & replace to processing Openstreetmap with your favorite text edition tools

Posted by Jean-Marc Liotier on 25 August 2015 in English (English)

There you are, in some Openstreemap editor, correcting the same typo for the 16th time, cursing contributors who neglect correct capitalization and thinking about how tedious this necessary data gardening is. While JOSM is endowed with unfathomable depths of cartographic potentiality, you long for a way to simply whip out your favourite text editor and apply its familiar power to the pedestrian problem of repeatedly editing text. Or the problem requires editing multiple mutually dependent tags and some XML-aware logic is therefore required – all the same: you just want to perform Openstreetmap editing as text processing. [..]

Daily MAPS.ME data updates

Posted by Zverik on 25 August 2015 in English (English)

If you are not yet using MAPS.ME, you are missing out :) The most frequent complaint from the mappers was that official maps in that application get updated only once a month, along with new releases. I usually map stuff the day before I'm going out, so this update cycle does not suit me. And since I work for them now, I can fix this.

Since this month, there are daily updated map files for MAPS.ME. To install downloaded files on Android, find MapsWithMe directory on your device (you can check "Settings → Map storage" in the app), and put new files there. You should delete old maps and directories with same names (the latter is to clear caches). And probably restart the app. On iPhone and iPad, just use iTunes: find and open MAPS.ME application, delete old maps, upload new.

Maps are published every day at around 5am UTC. Mwm files are maps, routing files are needed for car routing (pedestrian routing doesn't need them). In a couple of days a new version would be released, and it will be required for daily maps to function.

These files are not official. The application may behave strangely (there will be notifications about outdated maps), data may be broken (it's OSM, it is always broken), and your application may crash. If you encounter anything strange, you can clean the MapsWithMe directory and/or move the app from SD to the device memory, which must fix most bugs. Daily maps are my initiative, and MAPS.ME company is in no way responsible for these. Of course, I'm ready to answer any questions.

Prve promjene - kolovoz 2015.

Posted by Matej Janjić on 24 August 2015 in Croatian (Hrvatski)

25.8.2015. 3 promjene unos poljskih puteva Izvor: staze kojima trčim

Hello, from me here

Posted by GiannaB on 24 August 2015 in English (English)

Hi, I'm new here. Just bored so I thought I would give this kewl mapping whatchamacallit a try. I hope I can contribute, and not become way 2 lost in the process. GB in BFE,WV

Diary spam?

Posted by marczoutendijk on 24 August 2015 in English (English)

What do we do when a diary entry is obvious pure spam? Is there a way to block such a user?

post-vacations map editing

Posted by comzeradd on 24 August 2015 in English (English)

Amorgos view

Greek islands are a great place for summer vacations. This year I visited Amorgos, part of the Cyclades island group, and had a short visit at Pano Koufonisi.

Being in a new place means you need some kind of map to guide you through the endless number of beaches, paths and villages. I've been using OpenStreetMap as a map source for a long time and occasionally I contribute back. OpenStreetMap is a collaborative project to create a free editable map of the world. Many people call it the Wikipedia of maps, and it is in some extent. In contrary with all the major industry map services, which utilize free labor from volunteer contributors and give nothing back, OpenStreetMap data are freely distributed to be used by anyone for any purpose.

You can find many places where OpenStreetMap has more rich data than other sources or read stories on how targeted mapping on specific incidents saved thousand of lives. But there are also many places where it lacks reliable data. Amorgos (and unfortunately many other Greek islands) is one of these cases.

During my vacations there I used the only equipment available (my phone) to keep notes that would help me later to enrich OpenStreetMap. I extensivly use Osmand as my main navigation tool so this was my first option of keeping notes. You can either add favorites to mark any POIs or use the notes plugin to take photos or record audio notes. Osmand has also an editing plugin that can help you edit data on the fly, but I prefer to do this later. If you are searching for a more simple app OSMtracker is a better choice, for tracking routes and keeping notes. If you don't have a smartphone during your vacations you can just use paper and pen. Field Papers will help you print the map area you are interested in and you can keep notes with a pen.

Getting back home I had many notes and plenty of work to do. OpenStretMap has a great in-browser editor and the Map Features (really long) wiki page can guide you through the supported map elements. I added/changed around 90 map elements (beaches, paths, roads, buildings, etc) and it took me about an hour. Less than a day later the changes were rendered to the live website and I could feel proud about my contributions :)

So did you enjoyed your vacations? Now start contributing to OpenStreetMap so more people can enjoy the travel to all the places you visited. Happy mapping :)

OSM Editing

Location: ΕΠ1, Katapola, Δήμος Αμοργού, Περιφερειακή Ενότητα Νάξου, South Aegean Region, Aegean Sea Administration, 84008, Greece

Mapeando mais locais históricos em grupo

Posted by Edil Queiroz de Araujo on 24 August 2015 in Brazilian Portuguese (Português do Brasil)

Registrando rapidamente a atividade, nesta quinta, dia 20/08/2015, visitamos o bairro Barreiro Cabral nas proximidades de onde ficava o bairro Freguesia Velha. Lá se encontram grandes riquezas visuais, naturais e históricas.

Primeiro visitamos o cemitério que foi transferido da Freguesia Velha para construção da fábrica de cimento por volta da década de 70 e a igreja erguida ao seu lado.

Depois fomos um pouco mais na frente até uma mina de ouro abandonada, dos tempos do ciclo do ouro na região, onde existe ao lado uma famosa figueira gigante e logo abaixo, no Rio das Almas, um Encanados, construção de pedra para exploração de ouro apresentando pedras que foram cavadas por intervenção humana.

Mais detalhes sobre essa atividade:

Location: São Pedro, Ribeirão Grande, Microrregião de Capão Bonito, Mesorregião de Itapetininga, São Paulo, Região Sudeste, 18315-000, Brasil

How many HOT contributors never complete their first task?

Posted by dekstop on 24 August 2015 in English (English)

I only recently realised that HOT contributors need to mark at least one task as "done" to be listed as project contributor in the tasking manager. This made me wonder: how many people start contributing to a HOT project but never finish their first task? What proportion of all HOT edits are contributed in this manner?

Summary: about half of all HOT contributors never complete their first task on a project, although they do contribute to the map. These "partial" contributions account for 10-20% of all HOT edits.

Here's a timeline of the number of monthly HOT contributors, compared with the number of those who completed at least one task:

HOT contributors with completed tasks

And here the corresponding timeline of the number of edits contributed by both groups of people:

HOT contributions and completed tasks

Expressed as percentages:

Share of completed work

We don’t know why these contributors never completed the task, we can speculate but really we would need to ask them. Some may have forgotten to close it after they were done, some may not have had the confidence to mark it as "complete" and wanted someone else to have a second look, some may have gotten distracted, or lost motivation, etc.

It's also worth bearing in mind that we can always expect some proportion of tasks to be abandoned early: not everyone is interested in contributing to HOT in the long term. Many people are likely simply curious and try it out for a bit. Many may have come across HOT because a friend sent them a link, or because it was in the news, and we can't expect all of them to stick around.

However we should also be mindful of these early experiences. On one hand we can improve our understanding of what makes people stop early. On the other hand we should also consider the impact these contributions have on our map, and on validation and QA efforts. Where should we send absolute newcomers the next time we're in the news?

Some background info on the analysis...

I’m identifying HOT contributions in the OSM edit history as follows:

  • The contribution needs to fall within the geographic boundaries of a HOT project
  • The contribution needs to happen within the activity period of the HOT project
  • And then...
    • EITHER the user is a listed project contributor (they marked at least one task as done),
    • OR the changeset is tagged with a valid HOT project ID (the contributor never marked a task as done, but likely did start a task in the tasking manager before contributing edits.)

There are some caveats with this data:

  • In this analysis, one completed task by a contributor is enough to regard all their contributions to the same project to be marked as "done". The simple heuristics above do not allow me to distinguish task completion states for all individual changesets of a contributor to a project.
  • We can't distinguish contributors who never mark a task as "done" from validators, or expert contributors who manually tag changesets with a project ID. We don’t have the data to distinguish these cases, e.g. there is no published list of validators to compare against.
  • We can only reliably track this from Aug 2014 when iD started carrying over project-specific changeset tags from the tasking manager. We won't be able to identify "unsubmitted" contributions before then.

By Martin Dittus (@dekstop) in 2015.

Синевицко Верхнє

Posted by Helgi on 24 August 2015 in Ukrainian (Українська)

достатньо багато роботи - місцина дуже цікава

A complete map

Posted by Minh Nguyen on 24 August 2015 in English (English)

I saved my 10,000th changeset yesterday, as part of a months-long surveying and mapping spree in San José, California, where I currently live.

I never intended to map the Bay Area. Instead, I typically spend my free time helping to map my hometown of Cincinnati and tame TIGER deserts elsewhere in Ohio from the comfort of my (armless) chair. I always assumed that the middle of Silicon Valley would be full of tech enthusiasts who occupy their time by micromapping every last bench and bush. The map sure looked complete, with lots of highway=primarys and highway=secondarys, landuse areas covering every square inch, and plenty of rail and bike infrastructure.

But then, in April, I zoomed in. I had recently joined Mapbox to work on iOS map software, and the Show My Location function went right to my unmapped doorstep. Around me was an endless parade of outdated street configurations, missing landmarks, test edits, proposed BART stations tagged as the real thing, and GNIS-imported hospitals that had been closed for years. Most of the map hadn’t been touched in six years. In terms of POIs like shops and restaurants, central San José in 2015 was as blank as Cincinnati was in 2008. (San José is the country’s tenth-largest city, with a population 3½ times that of Cincinnati.)

Zoom in all the way to the spot marked San José, and this is what you would’ve found earlier this year.

As I added in pent-up local knowledge, I couldn’t help but notice some unfortunate tagging practices. The Bay Area is (ahem) liberal in its use of highway=primary and highway=secondary. It wasn’t difficult to find quiet residential roads with speed bumps, Child at Play signs, or unsignalized crosswalks being tagged as secondary, the same tag often used for heavily-used roads in other cities or 55 mph state highways in rural areas.

Most of the giant landuse areas that blanket the city need to be redrawn. Many landuse=residential areas conflate distinct neighborhoods or include tree-lined business districts (which look like residential areas from the air). Meanwhile, many industrial areas are being converted into residential areas due to a local housing boom. As much as possible, I’m replacing these generic landuse areas with more specific ones that correspond to individually named subdivisions, office parks, and retail complexes.

A typical landuse=residential area in San José spans multiple highway=primary roads. Either these aren’t really primary roads or this isn’t really one coherent residential area.

I suspect that the highway classifications and generic landuse areas, combined with decent rail data, made the map look a lot more complete than it really was. To a newcomer, the total absence of restaurants, buildings, and non-armchair-mappable information might’ve looked like a limitation of the project rather than a blank slate waiting to be edited. And again, there should be no shortage of visitors from San José, because this is Silicon Valley, where people talk about things like OSM. I’m sure the original mappers were doing their best at the time; unfortunately, six years ago, none of us knew as much about mapping ago as we do now.

San José is looking a lot better after an intense few months of surveying. There are plenty of POIs downtown – too many to fit onto the map at z19, in fact – as well as invisible attributes like speed, weight, height, and turn restrictions. I’m having particular fun mapping the many ethnic enclaves around town, which are very poorly represented on commercial map services.

This popular ethnic strip mall is now fully mapped in OSM (seen here in iD at z20). Apple and Google make a mess of things.

The San José place=city POI incorrectly sat 12 blocks away from where it should’ve been, at the site of this church, which incidentally is missing from Apple, Google, and HERE.

dgsmetoc name
Meanwhile, OSM now includes that church, as well as its full Amharic Ethiopian name. (Deciphering the Amharic signage was a challenge in itself.)

Still, that’s only one city. We’ve always known TIGER deserts are a problem, but are other cities similarly languishing after an initial burst of detail, flying under the radar because we all think they’re being taken care of? Maybe we can prevent that from happening in the future by making the map look only as complete as it really is.

Location: Saint James Square Historic District, Japantown, San José, Santa Clara County, California, 95113, United States of America

Mappiamo Mozzecane III edizione 2015 – Mapping party OpenStreetMap

Posted by Paolo Bubici on 24 August 2015 in Italian (Italiano)

Voglio segnalare un bella iniziativa ad opera di Carlo Benini ( che ha organizzato per sabato 12 settembre 2015 alle 9.00 presso la biblioteca comunale di Mozzacane (VR) la III edizione Mapping party OpenStreetMap - Mappiamo Mozzecane. Per chi fosse della zona (Verona - Brescia - Mantova) consiglio la partecipazione perché si ha la possibilità di imparare tante nozioni sul collaborative mapping! Il mio invito è a promuovere eventi del genere anche nelle vostre realtà.

Buon mapping!

Ecco Mozzecane su OpenStreetMap:

Creating New Volunteers: OpenStreetMap Training for Students

Posted by aHaSaN on 23 August 2015 in English (English)

Under their Child Rights Governance(CRG) project in Dhaka Save the Children International has taken initiative to share local knowledge in open platform and involving community in the knowledge sharing and using process through available technologies. Save the children has decided to teach OSM knowledge to community youth group including adolescents sothat they can share the updates of the surrounding features in Slum areas where they are living. The knowledge will be then used through community health service apps during the needs of people in slum. Keeping the sustainability in mind Save the Children has taken decision to provide the training same time to more 100 university students along with slum youth groups. This capacity of the student community will contribute not only in CRG project areas but also in the open map data base Bangladesh. Ahasanul Hoque(@ahasan4u), GIS specialist and OSM trainer is conducting the trainings starting from 24th August 2015. All training will be held at Save the Children Office, Dhaka [House CWN (A) 35, Road 43, Gulshan 2, Dhaka 1212, Bangladesh] and the mapping parties in slum areas will be held in Mirpur Sector 13 area of Dhaka city starting from October 3rd, 2015. #hotosm #missingmapsproject #osmbd #osm blogs

Location: Sector 11, Dhaka, Dhaka Division, Bangladesh

Specs for four lane and six lane roads

Posted by eternaltyro on 23 August 2015 in English (English)


Ministry of Road Transport and Highways (India) manuals for standards and specifications for four and six laning of national highways. As seen on National Highways Authority of India (NHAI) website

Specs for four-laning of national highways: Scanned PDF Link - 2.8MB

Specs for six-laning of national highways: Scanned PDF Link - 2.3MB

National Highways new numbering scheme

Posted by eternaltyro on 23 August 2015 in English (English)

New NH numbering scheme

Department of Road Transport and Highways (DORTH) published a new numbering system for national highways: Scanned PDF document - 3.3MiB (28th April 2010)

The document reads in English from page #21.

Old numbers: Wikipedia Link

New numbers: Wikipedia Link


  1. Ministry of Road Transport and Highways (MORTH) -
  2. Department of Road Transport and Highways (DORTH) -

Tip - Brug af UTM 32 Euref89 koordinat

Posted by LarsBG on 23 August 2015 in Danish (Dansk)

Der findes et Stamdataregister for vindmøller

Men de opgiver koordinat i et UTM 32 Euref89 format. Jeg har fundet denne side til at konverter til et brugbart Latitude and Longitude.

( Når jeg bruger 32 i Zone så virker det. Om 32 kun dur med denne register ved jeg ikke !

Location: Herningvej, Gråkær Bakke, Ringkøbing-Skjern Kommune, Region Midtjylland, Danmark


Posted by Supaplex on 23 August 2015 in Chinese (Taiwan) (‪中文(台灣)‬)

常有大型的廟宇附設提供住宿的香客大樓,來讓進香團住宿。但轉換到,記得在臺北的OSM Meetup曾討論過這一個問題,當時我說香客大樓是共宿方式,類似青年旅舍,提議比照tourism=hostel來標示。



Location: 林口路, 菁湖里, 粉寮, 林口區, 新北市, 24445, 中華民國


Posted by Supaplex on 23 August 2015 in Chinese (Taiwan) (‪中文(台灣)‬)


OSM Wiki連結


Location: 南勢角, 景新里, 中和區, 新北市, 中華民國

3D建築範例-印度蘇丹Mysore Palace皇宮

Posted by Supaplex on 23 August 2015 in Chinese (Taiwan) (‪中文(台灣)‬)

在OSM日記看到Chetan_Gowda寫的SImply 3D Buildings一文,用Mysore Palace當作範例示範單純用標籤描述3D建築樣式,用F4Map地圖展示的樣子 OSM 物件,可以打開地圖資料看是怎麼標示的)。

F4地圖 漂亮的3D建築(Flickr連結)

開放街圖 開放街圖上的資料(Flckr連結)

開放街圖詳細資料 開放街圖上詳細的資料,可以看到3D地圖的塔樓部分怎麼繪製出來的。(Flickr連結)

building part標籤 Flickr連結

OSM Buildings 在其他3D地圖的樣子-OSM Buildings(Flickr連結)


OSM Buildings總統府 Flickr連結

Location: Vani Vilas, Mysuru, Mysuru taluk, Mysuru district, Karnataka, 570001, 印度


Posted by Supaplex on 23 August 2015 in Chinese (Taiwan) (‪中文(台灣)‬)


北大特區POI (OSM Wiki連結)

Location: 北大特區, 南園里, 樹林區, 新北市, 中華民國
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