Users' diaries

Recent diary entries

Street Art: House Art in Nottingham NG4, England

Posted by alexkemp on 19 June 2016 in English (English)

Here are some nice examples of art expressed in the houses themselves. Only one full example, but first let's start with a very beautiful front door in Hillview Road, Porchester, Nottingham NG4 (etched glass + stained glass leaded-lights):

(etched glass + stained glass door in Hillview Road

Next is a modest little shield on the wall of a house in Ernest Road, NG4 (we English have been much influenced by the heraldry of the 14th Century):

heraldic shield in Ernest Road

The district around Ernest Road is full of 1920s & 1930s houses (a period renowned for the quality of it's housing in England as, following the slaughter of the Great War, the nation built “homes fit for heros”). Here is a good example of one of those:

1920s/30s house on Ernest Road

The lead-lights provide internal light for the staircase. I also love the stone lions!

My final, quirky example of house-art comes from the first house built in 1929 on a former apple orchard in (what became) Highfield Drive, Carlton NG4. The date of the house was immortalised by the builders in the leading within the front-door, and the current owners allowed me to photograph it today:—

house built in 1929

Location: Bakersfield, Nottingham, East Midlands, England, NG12, United Kingdom

GSoC 2016 - marking cities

Posted by Mateusz Konieczny on 19 June 2016 in English (English)

It is typical for maps covering large areas to display city labels. It is quite common to mark exact locations by displaying dots, circles or other symbols.

It also seems that labels for cities and towns may be displayed larger to improve the map.

I tested both ideas, without changing algorithm that selects cities and towns to be displayed. Example of before/after tested on UK are available below.

z11 github github

z10 github github

z9 github github

z8 github github

z7 github github

z6 github github

z5 github github

I ma not entirely sure about dots and I will certainly experiment with tweaking them, but I am happy with new sizes for city labels.

Additional before/after are available at

Location: Kosocice, Swoszowice, Krakow, Lesser Poland Voivodeship, Poland

Belgian mapper of the month: Julien Fastré

Posted by escada on 19 June 2016 in English (English)

Can you introduce yourself ?

I have several occupations, and I appreciate that they are in very different domains, althought, it might be tiresome from time to time:

  • I am a software developer at Champs-Libres, where a part of the activities is related to geography. We regularly use data from OpenStreetMap. We also install tile server, Nominatim, etc. Officially this is supposed to be a part-time job, but in reality, it takes much more time.
  • I studied journalism, but after my studies I've always been a community worker. I also work part-time as coach for unemployed women at a feminist association.
  • I have been (and sometime I am still) active in several different associations and movements such as GRACQ, which defends the rights of cyclist, de scouts, some unions, ...

Last, but not least I am a father and I love spending a good part of my life on that !


How and when did you discover OpenStreetMap ?

Purely by accident, in an article of the magazine of GRACQ. It got me inspired to continue. Back then, I started contributing with the things that interested me the most at that time: cycle routes and infrastructure for cyclists.

Do you use OpenStreetMap yourself ?

I need it almost every 2 weeks to localize the office of a customer, or to find my way around a different neighborhood. I am using my smartphone with OsmAnd more and more for this purpose.

I also use the data in my profession: both for our TMS-servers and for our analyzes we copy parts of the database to our servers.

What kind of mapper are you ?

I have the impression that little by little I became a mapper of the second plan. Right now, I do more evangelization around OpenStreetMap than actual mapping. I have organized conferences, met ministers, talked to the administration, etc. This requires some availability and patience. When you do it once, it often occurs that you are asked again. But I would be very happy if others will join me and start bringing the "message" themselves.

The consequence is that I have less time to add new objects to the database and spend more time talking about it. And, I confess, I have the impression that I start losing touch with the basis.

At this moment I am interested in the "social" mapping. I have been a community worker for 10 years and I think that OpenStreetMap is a great tool for this profession: e.g. for the creation of a central database of contacts, and to create maps for the most needy in our community (e.g. homeless people).

There was already a mapping party for the homeless in April, and I think it is a very sympathetic initiative.

What do you map ?

Mmm, I just answered that.. :-)

What is your largest accomplishment ?

I am proud of some of the presenations I gave, especially when some people from the audience came to me with additional questions, and later on became interested in OpenStreetMap or started using it in for their work.

Maybe not an accomplishment per sé, but I met a reasonable number of sympathetic people from the administration in Brussels and Wallonia. They are sincerely enthusiastic about OpenStreetMap, but every administration is like a juggernaut, they have a hard time to change course.

Why do you map ?

To maintain a "common good". I am very motivated by the idea to make and maintain a database with collective knowledge, available to everyone. This gives me the idea that I'm contributing to something that is much larger than myself.

Because our economic system is pushing us in the direction of individualism and glorifies property, I am happy, very happy to see different initiatives (such as OpenStreetMap, Wikipedia, open source, but also the movement of cooperatives and common kitchen gardens) form a counter movement.

I am convinced that on short or mid-long term our current dominant economical system will implode and a mixed system will emerge with a better balance between individual freedom and participation in the community.

Do you do other stuff besides mapping ?

As I already said, I present more than I map, although, occasionally, I find the time to map for Humanitarian OpenStreetMap Team (HOT) projects.

I am also looking forward to moving to a new home, so I have a new neighborhood to start mapping.

Do you have some ideas to grow the OpenStreetMap community ?

I really like the recent initiatives by the Belgian community to welcome new mappers.

The mapathon organised in collaboration with 7 Belgian universities in April of this year and the mapping party for the homeless also attracted new mappers. I am looking forward to similar initiatives.

What is the biggest strength of OpenStreetMap ?

Its community of mappers, its license, ... about everything :-)

I find that OpenStreetMap is always ahead of the large suppliers of databases: when there is a new trend (e.g. infrastructure for cyclists), mappers will immediately start adding those in the most visited areas. The suppliers of the classic databases come afterwards, maybe they are more complete or with more coherence, but they are late, sometimes too late. Sometimes they are never arrive, like in developing countries.

What is the largest challenge for OpenStreetMap ?

The continuous growth of regular contributors in order to keep the map up-to-date.

How do you keep informed about OpenStreetMap news ?

I follow the OpenStreetMap blogs via an RSS-feed. I am also member of the talk-be mailing list, although I do not participate very actively.

Do you have contact with other mappers ?

I see other mappers during mapping parties, but also in certain projects.

Anything else that you want to mention ?

I am very touched by the capability of the community to help and support. It makes me proud to be part of it.

Belgische mapper van de maand: Julien Fastré

Posted by escada on 19 June 2016 in Dutch (Nederlands)

Wat doe je in het dagelijkse leven ?

Ik heb meerdere bezigheden, en ik apprecieer het erg dat ze in zeer verschillende domeinen zijn, zelfs als me dat af en toe vermoeit:

  • Ik ben software ontwikkelaar bij Champs-Libres, waar een deel van onze activeiten verbonden is met geografie. We gebruiken daarbij regelmatig data van OpenStreetMap. We installeren ook tile servers, Nominatim, enz. Officieel zou dit een deeltijdse baan moeten zijn, maar in werkelijkheid, neemt het veel meer tijd in beslag.
  • Van opleiding ben ik journalist, maar sinds ik mijn studies heb afgerond ben ik maatschappelijk werker. Ik ben eveneens deeltijds te werk gesteld als begeleider van werkzoekenden in een feministische vereniging.
  • Ik ben ook medewerker geweest (en soms nog) van allerlei verenigingen of bewegingen: GRACQ (fietsersbond), de scouts,vakbonden, ... Ik ben eveneens vader en daar spendeer ik ook een mooi deel van mijn tijd aan !


Hoe en wanneer hebt u OpenStreetMap ontdekt ?

Volledig per toeval, in een artikel van het magazine van GRACQ, en dat gaf me zin om verder te gaan. Ik ben toen begonnen met bijdragen van wat me op dat moment interesseerde: fietsroutes en de infrastructuur voor fietsers.

## Gebruikt u OpenStreetMap zelf ? Bijna tweewekelijks heb ik OpenStreetMap nodig om het bureau van een klant te vinden, of om de weg te vinden naar een buurt die ik niet ken. Ik gebruik daarvoor meer en meer OsmAnd op mijn smartphone.

Ik gebruik de gegevens ook professineel: voor onze TMS servers en analyses kopiëren we delen van de databank naar onze servers.

Wat voor een soort mapper ben je ?

Ik heb de indruk dat ik beetje bij beetje een mapper van de tweede lijn ben geworden. Ik ben nu regelmatig bezig met OpenStreetMap te promoten. Ik heb conferenties georganiseerd, ministers ontmoet, met administratieve diensten gepraat, enz. Dit vereist een zekere beschikbaarheid en geduld. Wanneer je dat een keer doet, gebeurt het vaak dat de gesprekspartners een volgende keer terug bij je terechtkomen. Dat was ook het geval bij mij. Maar ik zal blij zal als er ook anderen zich gaan bezighouden met het uitdragen van die "evangelie". Als gevolg daarvan hou ik me minder bezig met het toevoegen van objecten dan met het praten over OpenStreetMap. En, ik beken, dat ik de indruk heb dat ik de voeling met de basis verlies.

Op dit moment interesseer ik me voor het "sociale" mappen. Ik ben reeds 10 jaar sociaal medewerker, en ik denk dat OpenStreetMap een zeer goed gereedschap is voor onze sector: voor het aanmaken en centraliseren van een gegevensbank van contacten, om kaarten te maken voor de meest noodlijdenden (bv. daklozen, enz.)

Er heeft reeds een "daklozen mapathon" plaatsgevonden begin april, en ik vond dat een zeer sympathiek initiatief.

Wat map je zoal ?

Huh ! dat heb ik zonet beantwoord ... :-)

Wat is je grootste verdienste ?

Ik ben fier op enkele presentaties die ik heb gegeven, vooral als de mensen me nadien vragen zijn komen stellen, en waarna ze zich zijn gaan interesseren voor OpenStreetMap of als ze nadien het project zijn gaan gebruiken in hun professionele bezigheden.

Misschien is het niet echt een verdienste, maar ik heb een behoorlijk aantal sympathieke mensen ontmoet uit de adminstratie in Brussel en Wallonië. Zij zijn oprecht enthiousiast over OpenStreetMap, maar zoals elke administratie, lijken zij op enorme schepen, die maar moeilijk van koers kunnen veranderen.

Waarom map je ?

Voor het handhaven van een "gemeenschappelijk goed". Ik ben zeer gemotiveerd bij het idee van het maken en onderhouden van een gegevensbank van collectieve kennis, bereikbaar voor iedereen. Ik heb zo de indruk mijn steentje te kunnen bijdragen aan iets dat veel groter is dan mezelf.

Doordat ons economisch systeem ons in de richting van het individualisme duwt en eigendom verheerlijkt, ben ik blij, heel blij, om initiatieven (zoals OpenStreetMap, Wikipedia, open source, maar ook de beweging van coöperatieven, gemeenschappelijke moestuinen, enz) te zien die stapje voor stapje een tegenbeweging inzetten.

En ik ben ervan overtuigd dat op korte of middelange termijn, we gaan zien dat het huidige, dominante economische systeem gaat instorten, en er een gemengd systeem zal ontstaan met een betere balans tussen de individuele vrijheid en gemeenschap.

Doe je andere dingen voor OpenStreetMap ?

Zoals ik reeds zei, doe ik meer presentaties dan dat ik map. Wat betreft mijn bijdragen, zal ik af en toe mappen in het kader van Humanitarian OpenStreetMap Team (HOT).

Ik verheug me ook op mijn komende verhuis, om die nieuwe wijk ook in de databank te zetten.

Heb je ideeën om de OpenStreetMap gemeenschap te laten groeien ?

Ik vind de initiatieven van de laatste maanden om nieuwe mappers op te vangen heel "cool".

De mapathon bij de universiteiten in April van dit jaar en deze voor de daklozen trekken ook nieuwe mappers aan. Ik verheug me op meer !

Wat is de grootste sterkte van OpenStreetMap

Zijn gemeenschap van mappers, de licentie, .. zowat alles :-)

Ik vind dat OpenStreetMap altijd voor loopt op de grote leveranciers van databanken: wanneer er een nieuwe trend is (bv. infrastructuur voor fietsers), gaan de mappers deze in kaart beginnen brengen in de gebieden die het meest gebruikt worden. De leveranciers van de klassieke databanken komen daarna, waarschijnlijk wel vollediger en coherenter, maar later, soms te laat of zelfs nooit, zoals in de gebieden van de Derde Wereld.

Wat is de grootste uitdaging voor OpenStreetMap ?

Het laten groeien van het aantal regelmatige mappers om de kaart zo actueel mogelijk te houden.

Hoe blijf je op de hoogte van nieuws i.v.m. OpenStreetMap ?

Ik volg de OpenStreetMap blogs via RSS. Ik ben ook geabonneerd op de talk-be mailing list, maar ik ben er zelf niet zo actief op.

Hebt u contact met andere mappers ?

Zowel bij mapping parties als bij het werken aan bepaalde projecten.

Om af te sluiten, is er nog iets dat u wil zeggen ?

Ik ben erg ontroerd door het vermogen van de gemeenschap om te helpen en te steunen. Daarom ben ik trots om er deel van te mogen uitmaken.

Contributeur du Mois: Julien Fastré

Posted by escada on 19 June 2016 in French (Français)

Qui es-tu ?

J'ai plusieurs activités, et j'apprécie beaucoup qu'elle soient dans des domaines très variés (même si, parfois, ça me fatigue un peu) : Je suis développeur à Champs-Libres, où une partie de nos travaux sont en lien avec la géographique. On ré-utilise fréquemment les données de OpenStreetMap (OSM). On met également en place des serveurs carto, nominatim, etc. Ça me prend officiellement un mi-temps, mais en réalité, c'est beaucoup plus. J'ai fait des études de journalisme, mais depuis que j'ai quitté l'école, j'ai été travailleur social. Je suis employé également à mi-temps comme formateur avec des demandeuses d'emploi, dans une association féministe. J'ai également été (et parfois je le suis encore) engagé dans beaucoup d'associations ou de mouvements : le GRACQ (Groupe de Recherche et d’Action des Cyclistes Quotidiens, syndicat des cyclistes), les scouts, des syndicats, ... Je suis également papa et ça me prend une autre belle partie de mon temps !


Comment et quand as-tu découvert OpenStreetMap ?

Complètement par hasard, par un article dans le magazine du GRACQ, qui m'a donné envie d'aller plus loin. J'ai alors commencé à m'intéresser et à contribuer pour ce qui était mon intérêt : à l'époque, les randonnées et les infrastructures cyclables.

Utilises-tu OpenStreetMap au quotidien ?

J'ai une utilisation quasi hebdomadaire d'OpenStreetMap pour repérer le bureau des clients, me rendre à un endroit, etc. J'utilise de plus en plus OsmAnd sur mon téléphone. J'ai aussi une utilisation professionnelle des données: je les extrais et les télécharge pour mettre à jour nos serveurs TMS, les importer pour des analyses, etc.

Quelle sorte de contributeur es-tu ?

Petit à petit, j'ai l'impression d'être devenu un contributeur de deuxième ligne. Il m'est arrivé fréquemment de faire "de l'évangélisation" pour OSM. J'ai donné des conférences, rencontré des ministres, des administrations, etc. Cela demande une certaine disponibilité, une certaine patience. Quand une personne le fait une première fois, il arrive que les interlocuteurs s'adressent à cette personne la fois suivante. Cela a été mon cas. Mais je serai heureux que d'autres puissent s'investir dans ce travail "d'advocacy". En conséquence, je passe moins de temps à ajouter des objets qu'à parler d'OSM. Et, j'avoue, je commence à ressentir un manque de contact avec le terrain.

Pour le moment, je m'intéresse assez bien à la cartographie "sociale" ; je suis travailleur social depuis 10 ans et je pense que OSM pourrait être un outil très utile pour le secteur : pour constituer et centraliser une base de donnée des contacts, pour produire des cartes pour les personnes les plus précaires (sans-abris, etc.).

Il y a eu un "cartopartie sans abris" début avril 2016, et je pense que c'était une très chouette initiative.

Que cartographies-tu ?

Heu ! J'ai déjà répondu ... :-)

Quelle est ta plus grande prouesse en tant que contributeur ?

Je suis fier de quelques présentations que j'ai faites, à la suite desquelles des personnes sont venues me poser des questions et qui, par la suite, sont intéressées au projet OSM ou l'on inclut dans leurs outils professionnels.

Même si ça n'est pas vraiment une prouesse, j'ai rencontré pas mal de gens sympa dans les administrations à Bruxelles et en Wallonie. Ils sont vraiment enthousiastes pour OSM, mais les administrations en elles-mêmes sont, malheureusement, comme des énormes paquebots : il faut du temps pour changer de cap.

## Pourquoi cartographies-tu ? Pour entretenir un "commun". Je suis très motivé par l'idée de construire et d'entretenir une base de donnée de savoir collaborative, accessible à tous. J'ai l'impression d'apporter ma pierre à quelque chose qui est plus grand que moi.

Alors que notre système économique nous pousse vers l'individualisme et consacre la propriété, je suis heureux, très heureux, de voir que d'autres initiatives (comme OSM, Wikipedia, le logiciel libre, mais aussi le mouvement des coopératives, des potagers communs, etc.) prennent le contre-pied et bâtissent, petit à petit, une alternative à ce système.

Et je suis persuadé que, à court ou moyen terme, on verra le système économique dominant s'effondrer et qu'émergera un système mixte, avec un meilleur équilibre entre la liberté individuelle et le partage communautaire.

Fais-tu d'autres choses liées à OpenStreetMap ?

Comme je l'ai dit, les présentations sont plus fréquentes que mes contributions. Donc, pour mes contributions, je prends, parfois, des tâches dans Humanitarian OpenStreetMap Team (HOT). Je me réjouis aussi de déménager pour améliorer la base de données dans mon quartier.

As-tu des idées sur la façon dont nous pouvons étendre la communauté OpenStreetMap, pour motiver plus de gens à contribuer ?

Je trouve que les initiatives d'accueil des nouveaux contributeurs de ces derniers mois sont très chouettes !

Les cartoparties d'avril 2016 à l'université et celles pour les sans-abris amènent de nouveaux contributeurs. Je m'en réjouis !

Quelle est, selon toi, la plus grande force d'OpenStreetMap ?

Ses contributeurs, sa licence, ... Tout, quoi :-)

Je pense que OSM est toujours en avance sur les grands fournisseurs de données : quand quelque chose est "tendance" (les aménagements vélos, etc.), les contributeurs vont commencer à la cartographier dans les zones où cela sera le plus utilisé. Les fournisseurs de données classiques arrivent ensuite, avec une plus grande complétude et cohérence, mais plus tard et parfois trop tard, ou jamais, comme dans les zones du tiers-monde.

## Quel est le plus grand défi pour OpenStreetMap ? Augmenter le nombre de contributeurs réguliers pour tenir la carte le plus à jour possible.

## Comment restes-tu au courant de toutes les petites nouvelles liées à OpenStreetMap ? Je suis abonné aux flux RSS des blogs d'OSM. Je suis également abonné à la mailing-list talk-be, mais je ne réagis pas énormément.

Avez-vous des contacts avec d'autres cartographes ? Comment restes-tu en contact ?

À l'occasion de cartoparties, ou quand on travaille sur un projet particulier.

Pour conclure, y a-t-il encore quelque chose que tu souhaites dire au lecteur ?

Je suis très touché par la capacité d'entraide et d'accompagnement de la communauté. Je suis fier d'être aux côtés d'autres contributeurs pour cette raison.

Création de la page FR:OpenTopoMap sur le wiki Openstreetmap

Posted by EddieJ on 19 June 2016 in French (Français)

Des fois, tout ce qui manque pour expliquer rapidement un concept, c'est une page Wiki.

Alors j'en ai créé une en français sur l'outil "OpenTopoMap" sur le wiki Openstreetmap.


C'est là :

C'est un wiki hein, alors n'hésitez pas à corriger, compléter... Je pense en particulier aux auteurs du petit guide de randonnée dans la Chaîne des Puits (Auvergne)

Editando Mapas sem Parar!!

Posted by raphaelmirc on 18 June 2016 in Brazilian Portuguese (Português do Brasil)

Desde ontem e hoje que venho editando o mapa sem parar, quero contribuir o máximo possível para que o meu bairro fique todo mapeado e depois seguir por todo mapa mapeando tudo que ver pela frente,casa, ruas e objetos.

Para ver o meu bairro acesse o link abaixo.

Para editar o Mapa faça o cadastro no Site do Projeto,

Espero poder contribuir para que o projeto OpenStreetMap siga com seus Objetivos!!


Raphael. Recife/PE.

Location: Cohab, Recife, Microrregião de Recife, Região Metropolitana de Recife, Mesorregião Metropolitana de Recife, Pernambuco, Região Nordeste, Brasil


Posted by escada on 18 June 2016 in English (English)

I just started playing with MapContrib made by Guillaume AMAT from France. It's a great tool to create dedicated webpages (or apps if you want) for certain tags.

Here I made one for dog parks

MapContrib Dog Parks

You can also allow other people to edit the map data in the way you want. They can change existing data or add new, in this case dog parks

Editing data

So all nodes that will be added already have have the tag leisure=dog_park.

Another map that I made is for artwork

MapContrib Artwork

You can define the content of the popup for each POI, as well as predefine some possible node types and their tags. Here I defined statues and sculptures:

Node Types

and for statues I defined the 2 base tags tourism=artwork, artwork_type=statue and 2 additional tags that you can fill in to set the artist name and the year the artwork was created

statue tags

The above 2 links to MapContrib can be used on a mobile device, so you can easily add new dog parks and artwork on the go.

People have already defined a number of POI-themes, but you can easily add your own with a simple Overpass Query. I would say, why don't you try it out yourself and get people mapping missing stuff in your town (or across the world)

You can find some additional information (in French) on the wiki

OSMF board meeting report

Posted by imagico on 18 June 2016 in English (English)

Yesterday evening there was a public OSMF board meeting. I was one of the few non-boardmembers attending so i thought i'd give a report of my impressions here.

This was not the first public board meeting, there was one previously last July but this was a singular occurence so it was possibly more of a mock up meeting demonstrating publicly how board meetings go. The one yesterday was held under the premise that this is how board meetings are going to be conducted in the forseeable future which is a very different sitation. A big thanks to the board for taking this step and i hope the OSMF members and the OSM community as a whole acknowledge this by coming to the meetings. With the short announcement and the Friday evening date in Europe the small participation this time was understandable though. This is really public by the way, everyone can listen in, you don't need to present your OSMF membership number or something like that before you are allowed to enter.

I was about ten minutes late so i did not get the start, i came in during some discussion on SotM regarding finances between the board and Rob Nickerson from the SotM working group as invited guest. There were very few non-board members present overall - i think apart from Rob and me there were two others overall.

A few general words on procedure: The meetings are conducted with Mumble which i was already familiar with from the German OSM podcast which was usually recorded with audience via Mumble. You connect your Mumble client to the HOT mumble server (, move into the OSMF board meeting room and can immediately listen to the conversation. Since i was not present at the start i missed any initial statements on procedure. There were no constraints in place this time so i probably could have said something at any time but in general it is likely expected from guests to not speak up freely but only talk when being given the word by the board. You can also mute yourself (which i did) to indicate you are not actively participating.

In general Mumble is not quite like a face to face meeting, you have only acoustic and no visual communication and there is always a small but inevitable time lag in communication. It is more like radio communication. You usually configure your client to only transmit when you press a button to eliminate any background noise when you are not talking. There is also a text message/chat system connected to it which can be used for communication without interrrupting the audio conversation.

On the meeting itself - my general impression was that it was easy to follow, everyone was understandable and none of the current board members has a really problematic accent - Paul a bit of Canadian which you need to get used to, Peda quite strong German tone (which i of course have no problem with) and Ilya a bit of Russian tint (which i find enjoyable). There was occasionally somewhat strong background noise while people were speaking but not everyone can move to a tone studio for the meeting of course.

What happens during a board meeting is the members talk about various topics make decisions on some of them via vote and so on. My general feeling of the whole thing is - i hope this does not sound too harsh - that it is kind of unproductive. I am probably somewhat biased here, being self employed i am not really that used to regular organizational meetings any more - when i am at a meeting these days i tend to get paid by the hour which usually tends to expedite things. But i know from past experience that meetings are often fairly unproductive at least by outward appearence and this board meeting was not an extreme case in that regard at all.

This impression is probably partly because of the setup in Mumble - although you are talking to each other you are not really stitting together. Quite a lot of time is spent essentially on waiting if someone has something more to say on the matter because you cannot indicate this using body language. There is also the occasional conflict when two people try to speak up at the same time and then both back off to let the other have the word. Another factor probably was that because the meeting was public everyone was very guarded and careful with voicing a strong opinion. To get progress on a subject it tends to help if you try to work out topics of disagreement by expressing your standpoint in a very pointed way and possibly even insituating a disagreeing standpoint from someone else. This did not really happen. So this is probably something that will improve in the future when everyone gets more used to the public setting.

I will give two examples of subjects that were discussed:

One topic was the collective database guideline which was approved by the board during the meeting. Procedure for votes is apparenly very formal by the way, Kate (who was chairing the meeting) called every member individually to approve or disapprove. There was some discussion about the examples to be included with the guideline - i did not really understand that, maybe because it was about a third example which was not part of the guideline draft on the wiki. What astonished me about the procedure a bit is that although this was a decision with quite some impact - after all this is now an official statement on the interpretation of the license by the organization holding the rights on the OSM data - there was no recap of the process leading to the guideline, the reasoning behind making the guideline the way it is and how the board thinks this fits into the OSMF mission (which it probably does - but still). Also i would have expected a kind of outlook in lines of where to go from here in terms of developing additional community guidelines or modifying existing ones.

Part of this could have been due to the fact that no one from the license working group was present and the board probably considers the guidelines to be managed mostly independently by the LWG and their role being purely oversight in terms of preventing possible gross blunder in these.

Another topic which was still in a much earlier state of discussion was a possible donation drive for the OSMF to be conducted later this year. Here my understanding was somewhat hampered by the fact that apparently this idea has been already extensively discussed on the face-to-face meeting of which there is not yet a comprehensive record. The discussion was mainly about how to proceed about this regarding the purpose of the donations (what the money is needed for), possible legal implications (if the donations can only be used for the purpose they were announced to be needed for) and timing (what is the best moment to start such a drive). The impression i got from this is that the board considers a fairly general donation drive to support their efforts to put OSMF finances on a less volatile basis (meaning less from hand to mouth and more of a cushion to compensate fluctuation in either income or expenses). One topic touched in that regard was the matter of trust in the OSMF board (specifically by the operations working group which is considered instrumental for a donation drive but also in a broader sense). My own impression is that this in general are important matters and it is good to see these are discussed although i kind of see the risk of starting to build the house from the top. Trust in the board regarding finances is a prerequisite for a successful donation drive and having an overall concept and realistic plans for both income and expenses is necessary to build such trust. With plans for corporate membership and widening general OSMF membership still somewhat vague and little long term (i.e. beyond yearly budgets) plans and directives on expenses (what the money will be spent on and what it will not be spent on) there is little basis to form an informed opinion on an individual matter like a donation drive. I can see the possibility of all of this developing into a solid an trustworthy concept but there is still a lot of work to get it there.

Overall i see the concept of public board meetings on a good way. Mikel made an interesting suggestion to have alternating formal board meetings and more informal talks in between which could make the whole thing more participative and more interesting for the community (although care needs to be taken for this not to degrade into a general chat).

A final suggestion to the board: It would probably be good if in the future you were all easily identifiable on Mumble by your Mumble name for anyone entering at any point in the meeting. IIRC Mikel was kind of cryptic. Maybe just agree on a common form (first name, first + last or OSM username).

Location: Sankt Georgen, St. Georges, Schlatthöfe, Freiburg im Breisgau, Regierungsbezirk Freiburg, Baden-Württemberg, 79111, Germany

Mapathon at BDRCS, June 17th, 2016

Posted by mmahmud on 18 June 2016 in English (English)

After about two months break, the OSM mappers got together for another Mapathon. The venue was the training room of BDRCS (Bangladesh Red Crescent Society). It was like a reunion with the old mappers with many of whom I have not met for quite a few months. I also met some new mappers, one of whom is from my own University.

We mapped the Sirajganj Sadar for a project of ADB (Asian Development Bank). We did the following tasks: ;

After the Mapathon, we had Iftari together. Overall it was a success.

Location: Niketan, Dhaka, Dhaka, Dhaka Division, Bangladesh

Mappatura Comune di Besnate

Posted by Paolo Gogni on 18 June 2016 in Italian (Italiano)

L'obbiettivo prefissato è la mappatura completa del Comune de quo entro la fine dell'estate 2016. Inoltre, il controllo e l'inserimento di alcuni nuovi tracciati boschivi, tramite traccia GPS.

Location: Cascinetta, Gallarate, Varese, Lombardia, Italia

We have tracks. Are they any good?

Posted by BushmanK on 18 June 2016 in English (English)

Recent discussion with one of OSM contributors, who edited a forest path, located at narrow straight cutline, crossing pretty dense forest, made me thinking about some good example of how bad tracks can get under the foliage. Since that person used Strava's point cloud, I decided that it would be perfect example.

Let's take a look at this place. It's a clearing for high voltage power line, about 85 meters wide. There is a mixed use pedestrian/bicycle asphalt road (former service road), about 6 meters wide, it goes from south to north. There is another road of similar type and size, which goes to the east. Forest there is mixed (about 40% firs), old grown, about 19 meters tall.

Then, let's take a look at Strava data overlaid on top of high resolution imagery (click on it for original resolution): Click for full resolution

  • Point cloud is quite dense there, and highest density portion width stays about 5.5..6 meters regardless of foliage cover.
  • Width of corridor, fully covered with points (at least one point each 0.5 m) is about 25 meters with clear sky view and about 33 meters under the foliage.
  • Width of full spread corridor is about 45 meters with clear sky and about 85 meters under the foliage.

Spread width does not change immediately, when road goes under the foliage. It's caused by Kalman filter, used in every consumer GPS receiver to reduce random jumps to the sides from user's course line (which improves only appearance, but not quality of data, since it's based on assumption, that receiver moves more along more or less straight/smooth trajectory).

I don't know, how exactly Strava calculates the color of each pixel for their point cloud layer, but if it's just some simple additive method with clipping, highest density area will only grow in time. And it's only a coincidence, that currently its with equals to real width of these roads.

Since all tracks in point cloud are independent, it doesn't make any sense to say, that averaging improves precision (width of corridor). It actually even makes it worse, because more awful tracks piling up there in time. However, accuracy (distance between corridor median line and road median line) grows until certain "saturation point". At least, until full coverage (when each point of layer contains at least one point at highest resolution) within visible corridor will be reached.

What should we learn from it?

Random tracks, even several tens of them, can't be completely reliable under the foliage, especially since foliage density is different, and certain areas may affect GPS reception systematically (cause similar direction of jumps). Foliage potentially increases spread from about 10 meters to each side to 20 meters.

Is this value large? If you don't have any other data there - no, it's okay - there are roads in OSM, traced from Landsat imagery. If you're trying to improve accuracy of paths, traced by any sources, better than Landsat imagery - you probably shouldn't do that, GPS tracks are not enough accurate to give any improvement, even in case of accumulated sets of tracks.

Last Week's Favourite Mapillary Photo

Posted by alexkemp on 17 June 2016 in English (English)

I use Mapillary to upload photos to & to store in the OSM map (a JOSM plugin allows them to be uploaded + shown on the map) (that also allows them to be shown in these diary entries). Mapillary sends me weekly emails, telling me currently that I've uploaded a total of 724 photos & have a total of 741 views. Which is not a lot.

This was last week's most popular photo:—

the most popular photo?!

I think that my photo viewers need to get out more.

Location: Bakersfield, Nottingham, East Midlands, England, NG12, United Kingdom


Posted by brogo on 17 June 2016 in German (Deutsch)

Ich finde es ja immer toll, wenn man hört, daß OSM bzw. darauf basierende Projekte finanziell unterstüzt werden. Ich habe da mal ein paar Zahlen rausgesucht:

  • Wheelmap 825.000 €, Spende von Google, April 2016
  • Mapbox 575.000 $, Spende von Knight Foundation, September 2012
  • HOT Einnahmen 2011, 281.050 $
  • HOT Einnahmen 2012, 428.225 $
  • HOT Einnahmen 2013, 768.642 $
  • HOT Einnahmen 2014, 732.994 $

Die Finanzen der OpenStreetMap-Foundation (OSMF), die ja die Hauptserver betreibt, sehen dagegen mickerig aus.

  • OSMF Spendenaktion Juni 2016: 56.000 £
  • OSMF Budget 2016: 57.000 £

Es ist schade, daß das Hauptprojekt so wenig Beachtung findet. Allerdings erhält die OSMF Sachleistungen, wie z.B. das freie Housing und Hosting.

Auch im Vergleich zu anderen Open-Source-Projekten sieht die OSMF ziemlich klein aus. Dazu muß man gar nicht die große Wikimedia nehmen. Die Open Knowledge Foundation Deutschland (OKF) weist zum Beispiel für 2014 Einnahmen von 415.000 € aus und beschäftigt 10 Teilzeitmitarbeiter.

Wenn ich sehe, wofür im öffentlichen Bereich überall Fördertöpfe bereitstehen und was damit alles gefördert wird (selbst der Umbau des Spielplatz "unseres" Kindergartens wurde mit einem 5-stelligen Betrag aus EU-Mitteln bezuschusst) , frage ich mich, warum die OSMF finanziell nicht viel besser aufgestellt ist? Was bringt es Mapbox, wenn das OSM-Projekt kaputt ist, wie will HOT weitermachen, wenn das Mutterprojekt nicht ordentlich weitergeführt wird?

Group of buildings imported in Boscoreale, Italy

Posted by Chetan_Gowda on 17 June 2016 in English (English)

I noticed buildings imports back in February 2016 which were having building=yes tag for all building nodes. Have captured the details here.

OSM user: geopeppe imported all these buildings and after my message, he cleaned unnecessary tags on nodes but now only exists are:

  • Group of buildings instead of individual buildings.
  • Missing source of the data.
  • The missing documentation of the import.

I'd like to inform the community of Italy about this import and take next actions towards clean up or right documentations.

Location: Rione Provolera, Torre Annunziata, NA, Campania, Italy

ALOS Global Digital Surface Model "ALOS World 3D - 30m" (AW3D30)

Posted by BushmanK on 17 June 2016 in English (English)

Since I didn't find any references to AW3D30 digital surface model in OSM Wiki, I decided to create a new page for it.

Briefly speaking, since JAXA license requires attribution for derivative products, it doesn't seem like it's possible to use these data to update OSM database, but it's still possible to mix AW3D30 data with OSM data in third-party products.

Visual comparison between SRTM 1-arcsecond (source: NASA), upper half, and AW3D30 (source: JAXA), lower half: Click for full resolution (Click on image for full resolution)


Posted by ccac on 17 June 2016 in Brazilian Portuguese (Português do Brasil)

O que é isso?

Location: Álvaro Weyne, Fortaleza, Microrregião de Fortaleza, Mesorregião Metropolitana de Fortaleza, Ceará, Região Nordeste, 60455001, Brasil

Edición compartida

Posted by marciano on 16 June 2016 in Spanish (Español)

Desde hace unos meses me he dado a la tarea de mapear las ciudades de Acarigua y Araure, en el estado Portuguesa de Venezuela. Para cuando empecé solo estaban mapeadas algunas de las vías más importantes de las ciudades y no estaban correctamente clasificadas, poco a poco he progresado hasta lograr tener casi todas las avenidas y calles principales listas. El principal problema que encontré es que los mapas de Microsoft Bing (Aplicación que sede sus imágenes a OSM ) tienen muy baja resolución en una parte importante de las dos ciudades, lo que impide el mapeo directo desde la aplicación web sin tener puntos de referencia. Así que me propuse a hacerlo utilizando trazas geográficas obtenidas desde la aplicación para Android "OSM Tracker", así unas veces a pie otras veces en vehículos he ido obteniendo el trazado de la ciudad.

Pasados algunos días desde mis últimas ediciones he visto con agrado que no estoy solo en la labor de mapeo, ahora puedo ver la ubicación de algunas entidades bancarias, restaurantes de comida rápida, farmacias, y otros lugares públicos que han agregado otros residentes de estas ciudades. Por un largo tiempo pensé que existía un total desconocimiento de la plataforma en la región o que nadie tenia ningún interés en esto, el día de hoy veo que estaba equivocado, creo que la razón por lo que no se editaba era por falta de referencias geográficas visuales (calles y avenidas) ahora que están al menos casi todas las principales todo ha cambiado. Espero contactar a quienes dedican parte de su tiempo a mapear estas ciudades y quizá poder organizarnos mejor en equipos y coordinadamente, estoy a la disposición de Uds. para intercambio de información o para coordinar esfuerzos.

Que bueno que hay más gente por aquí cerca mapeando!

Location: Avenida José Antonio Paez, Acarigua, Distrito Araure, Portuguesa, Región Centro-Occidental, Venezuela

大和市のスタンドパイプの情報をOSMに入れるためには? 中間発表レジュメ

Posted by MISA_AGU on 16 June 2016 in Japanese (日本語)


  • 消防車が入れないような密集地域で火災があった場合、地下式消火栓とホースを繋いで消火活動ができる道具。

  • 消防車両がなくてもスタンドパイプとホースがあれば、地下式消火栓の圧力で水を出すことができる。

  • 約15メートル先まで放水が届き、従来の消火器や消火用バケツに比べて、大きな消火能力が期待できる。



  • スタンドパイプ   :地下式消火栓に接続してホースへ水を通す
  • 消火栓鍵     :消火栓の蓋を開ける(十字鍵ともいう)
  • スピンドルドライバー:消火栓の水栓を開ける
  • ホース      :消火栓からの水を送る
  • 管鎗       :水を出す蛇口の役目
  • 以上が、備えられており、火災現場の近くの消火栓まで運べるようになっている。





  • 既存のkey=valueでは、man_made=standpipeの入力件数が多い。
  • しかし、スタンドパイプは火災時など緊急を要するときに使うものであり、man_madeというざっくりとしたくくりでいいのだろうか。


  • スタンドパイプはそれだけでは消火活動ができず消火用のホースが必要なので、通常、上の図のようにスタンドパイプ・ホース・その他の必要な道具は一緒に収納されている。
  • しかし、海外のスタンドパイプにはホースなどの備品が必要ではないことから、世界共通のvalueにはならないのではないか。


  • 大和市にとってもOSMにとってもタグを新しく定義する必要がある。
  • emergency=fire_hose:standpipe
  • emergency=fire_hoseにタグとしてstandpipeをつけることでより明確に伝えることができる。
  • 日本と海外のスタンドパイプには違いがある
  • 日本:スタンドパイプとその他部品が一式まとめてある。
  • 海外:スタンドパイプのみ(日本でいう消火栓のようなもの)
  • これらの相違点から、日本ではこういうスタンドパイプがあり海外のものとは違うというアピールと、スタンドパイプの新しい定義を提案することが望ましいのではないか。

Criando Ruas nos Bairros de Três Carneiros Baixo e Três Carneiros Alto e delimitando Áreas residencias dos Bairros.

Posted by raphaelmirc on 16 June 2016 in Brazilian Portuguese (Português do Brasil)

Ontem comecei a adicionar novas ruas nos bairros de três Carneiros Baixo e Alto e hoje estou delimitando os limites de cada bairro em suas áreas residenciais, todos os Bairros pertence a Cohab, conforme cadastro na prefeitura do Recife.

Location: Cohab, Recife, Microrregião de Recife, Região Metropolitana de Recife, Mesorregião Metropolitana de Recife, Pernambuco, Região Nordeste, Brasil
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