HI

1.添加学校道路 2.添加零售区建筑

Check out the OSM apps catalog. It brings together and shows all the great work (mapping and programming) that we have done.

Help improve it by updating the software documentations (screenshot and description) in the osm wiki.

Immer wieder erreichen uns im WeeklyOSM Team Fehlermeldungen für die OpenStreetMap Karte.

Da wir oft nicht vor Ort sind, und das wöchentliche Redaktionsgeschäft schon einiges an Freizeit verschlingt, möchte ich hier kurz die Möglichkeiten aufzeigen wie man Kartenfehler beheben kann.

Vorweg: OpenStreetMap ist eine Mitmachkarte. Wir haben versucht, es einfach zu gestalten sich zu beteiligen.

Eine Notiz erstellen

Die einfachste Art ist, eine Notiz unter www.openstreetmap.org aufzumachen. Hierfür gibt es einen kleinen Notizbutton auf der rechten Seite, der mit “Einen Hinweis/Fehler zu den Kartendaten melden” beschriftet ist. Hier könnt ihr Fehler ohne Euch zu registrieren melden, wenn Ihr uns mit der Registrierung Eure Email Adresse hinterlegt (die nirgendwo öffentlich gemacht wird), dann werdet Ihr über Änderungen / Rückfragen zur Notiz informiert. Geht davon aus das eine Fehlerbehebung 3-4 Wochen dauert, das hängt von der Mapperzahl vor Ort ab. Solltet Ihr ungedudig werden, bitte nicht vergessen, wir machen alles hier in unserer Freizeit.

… See full entry

Teste 123

Exploring the growth and temporal mapping patterns in OSM in North America

The following figures are from my OSMUS Connect 2020 Talk. Additionally, I’ve included the relevant queries to reproduce these datasets from the OSM public dataset on AWS (See this blog post). For this work, I used a bounding box that encompasses North America.

Starting with the big picture…

This year we are averaging about 900 active mappers each day, with significant growth in the past few years:

SELECT 
    DATE_TRUNC('day',created_at) as day,
    COUNT(DISTINCT(uid)) as user_count,
FROM changesets
WHERE min_lat >  13.0 AND max_lat <  80.0 AND min_lon > -169.1 AND max_lon < -52.2
GROUP BY DATE_TRUNC('day',created_at)

How did we get here?

This next graph quantifies a mapper’s first edit in North America by month. For example, in August 2009, 1,700 contributors edited in North America for the first time. In January 2017, close to 7,000 contributors edited in North America for the first time.

… See full entry

1. Know your source data.
2. Map only what you know.
3. Your goal is improvement, not completion.
4. Fewer, more accurate nodes are better than many less accurate nodes.
5. All lines are straight, all curves are circular, and all corners are perpendicular until proven otherwise.
6. Map one thing and map it well.
7. Don’t be afraid to delete inaccurate nodes imported from TIGER. The import from 2007 won’t care.
8. Make your editor work for you.
9. Satellite imagery can hide mistakes and missing features. Take a step back and look at the rendered map.
10. Validate and sync often.
11. Nothing is ever named “State Route”
12. Structural and semantic accuracy are more important than visual accuracy.

Starting from a pull request for https://opencampingmap.org at github https://github.com/giggls/opencampsitemap/pull/13 I added visualisation code for capacity and maxtents tags.

Unfortunately it is far from clear if capacity means people or number of camp pitches in case of campsites.

While the Wiki clearly states, that number of people are meant many mappers seem to think that we are talking about the number of pitches.

Unfortunately there is nothing I can do about this.

Any ideas?

Merupakan Daerah Yang dalam Proses Pemerataan Pembangunan Secara Khusus Dalam bidang sarana Dan prasarana Air Bersih

Leider nicht so gut ausgebaut die Wanderkarte in diesem Gebiet. Oder gibt es so wenige Wanderwege in diesem Gebiet? Wäre schön, wenn die Wanderwege dort mehrere eingezeichnet würden. Es ist soooo ein schönes Gebiet in den Stein-Fels -Bergen mit Grünen Matten und viele Alpen. Danke für mehrere Wanderwege einträge.

Background

The following assertion was made by a blogger around 18 months ago:

"..mappers as a whole are mapping more features (buildings, houses, libraries, schools, green spaces etc) within the wealthier areas of the Dublin region than in the poorer areas." {53degrees} 

It was made here and in a follow up here

Reading the two posts together with the twitter promotions for them it is clear that the hypothesis rests on the perception that OSM contributors, specifically those contributing to OSM around Dublin, suffer from some kind of collective unconscious bias, to the extent that they have neglected the deprived areas of Dublin and mapped the affluent areas to a higher level of completion. This assertion, if well founded, would reveal that not only does the map of Ireland, specifically Dublin have gaps, - but that these gaps are patterned in such a way as to further exclude and marginalise the residents of these areas and the second blogpost makes no doubt of this consequence.

We have a great name for the band!: "The Spurious Correlations"

The author refers to 3 or 4 examples of poor areas, sparsely mapped, compared in turn to affluent areas mapped to a higher extent using visual assessment. There is no transparent methodology or apparent logic for these comparisons other than they were what the author appears to want to choose. Perhaps they are conveniently selected to suit the conclusion.

The author repeated the claim on twitter [now deleted] on the 23rd October 2020, presenting the evidence of these three or four comparisons as conclusive proof of a “startling lack of completion of working class areas in osm, a citizen science project”. Some charts were shown, demonstrating a very selective method of counting tags. Whether this represents traces of a deeper investigation remains unclear. This needs to be tested here and now.

Transparent Method

… See full entry

Some of us on the OSM Foundation Board have agreed to do an AMA (Ask Me Anything) on the reddit forum for OpenStreetMap (aka “the r/openstreetmap subreddit”) starting on 15:00 UTC 9th November. It’s an oppertunity to ask us some questions. Be gentle. 🙂

See you there. 🙂👋

More details | event date/time in your timezone | event Countdown

I got off my butt at lunch today and walked a bit more of Daytona Beach, FL, USA.

Part of the walk was on International Speedway Boulevard. While there I fixed a building (a church was purchased by Bethune-Cookman University), verified a few others, and added some missing businesses.

On the way in to work I added a business. I’ve decided to try to add one new business along my commute every day.

Slowly we progress.

EDIT: This imagery will only be out of copyright from the end of 2022 (in other words, we will be able to use it in 2023). Also in 2023, building and housenumber imagery from 1940s to 1960s will be released for the whole of England and Wales

As anyone mapping in the UK knows, in most areas housenumber coverage is abysmal. For example, in osm, germany has 14 million housenumbers, USA has 10 million and the UK has about 1.6 million (as of 2018).

Therefore, an open data source of housenumbers would make it significantly easier to add housenumbers. The only other method is surveys, which is slow and tedious and can only really be done over a small area.

It just came to my attention that an out-of-copyright map from the National Library of Scotland of housenumbers and buildings in London is available for OSM. This is a old map, that was surveyed from 1944-1967.

Due to this, lots of construction and destruction has taken place since then, so in some areas of London, this map will not be useful. However, many buildings have remained the same since then, and if that case this map provides a far, far quicker way of mapping housenumbers compared to going out and surveying them yourself.

To test the imagery, follow these steps (in JOSM):

1. Imagery –> Rectified Image
2. Select “Custom WMS Link”
3. Enter the following string into the textbox (including the “tms:” part): tms:https://geo.nls.uk/mapdata3/os/ldn_tile/{zoom}/{x}/{y}.png

This map extends to Brighton and Southend, although it does not provide housenumbers in those areas, only buildings. (However, for some reason housenumbers are present in the districts west of Brighton, e.g Worthing)

If you want examples of this imagery being used, user Spiregrain has mapped significant sections of “Stratford New Town” in London using this imagery. I mapped some housenumbers in Sheerness using this imagery.

… See full entry

Beach Street, Daytona Beach, FL, USA, is one of the prime commercial areas in Daytona Beach. Currently the city government is making extensive modifications to the street itself, moving it from two lanes each direction to one lane. It’s also adding parking and trying to convert the street from a through road to a destination.

And so it was disconcerting to notice that one entire block of Beach Street – from International Speedway Boulevard to Magnolia Avenue, had only one business listed, Net Works, Inc. It’s understandable why a computer company would be on OSM. After all, we’re all geeks, right.

But there were a lot of stores, etc., that were ignored on that block. Additionally, all the different storefronts and alleys were all combined into a single “building”. So I walked down the street this morning, adding in every open business between those two streets. I also separated out the buildings and left open the alley. It’s difficult to talk about attracting business if the map doesn’t show any place for the people to go.

Of course, now I have to deal with the delay time as the changes work their way slowly through the different OSM zoom levels. Right now (six hours later) the changes haven’t propagated through any zoom levels, although they do appear on the Edit screen if you feel the urge to see the changes. Oh well, we’ll see what it looks like in a few days.

I’m not 100% accurate on where the specific businesses are. However, the order is correct, and the difference should be minor.

This morning I also added a couple more businesses from my daily commute to work.

I’m in Iowa on a political campaign, but took last Sunday off to tour the six surviving covered bridges of Madison County. If you are interested in a virtual tour, check out the images I uploaded to Mapillary. I used a GoPro Hero 7 Black, newly acquired after the GPS function of the GoPro Hero 5 Black refused to work.

We assessed where we are and got a lot of good work OSMF Board Screen to Screen a couple weeks ago. One place where we have not moved as much as hoped is with diversity and inclusion. Diversity and inclusion was a big topic at the start of this year’s Board, we adopted a diversity statement and started a diversity and inclusion special committee (DISC) which had a couple good meetings. Then nothing. Why and what can be done to revitalize?

I take personal responsibility. I organized the first two meetings, but was hoping to see someone else step up to take charge on the effort. My background – white male techie from US/Western Europe – is very well represented in the OSMF, and I didn’t think it was best for the DISC to have me as the chair. On reflection, that was wrong, and I should take up the effort to bring dedicated people together and make sure they have what they need to channel limited time and energy effectively.

So I want to do three things.

First, I want to have calls with people from underrepresented groups and geographies in OSMF, hear about your involvement in OSM, what you’d like to do in OSM and OSMF (and certainly not only on diversity directly), and offer my guidance and help to find good places to contribute. OSM is hard to navigate, and I want to make direct personal effort. Many of you I have the privilege to know, many not yet. Please get in touch with me, or share my contacts with folks others.

Second, I want to revitalize DISC and simply chair it. To make it vital is again going to take personal outreach to people who have been involved, or could be involved, and find the best places again to focus. One area I think we should take up is trust and safety in our online communication spaces.

… See full entry

Jeg vil gerne tilføje oplysninger til kortet over vores sommerhusområdet. Der er allerede et objekt med typen “Arkæologisk sted”. Men jeg kan ikke tilføje et objekt med den type. Er der en grund til det? Jeg har tre andre steder i vores området hvor der har været foretaget udgravninger.

I added a few miscellaneous items yesterday.

First, yesterday morning I added my gas station in DeLand. So now my RaceTrak is on the map.

Then, while I work I added one of our community centers to the map. I also added (separately) the tennis courts and the swimming pool. Since this was a work facility, there’s no guilt about doing that during the day.

I also made changes to the big hospital in Daytona Beach. The way it was mapped originally, a lot of the land on the other side of the street from the hospital was listed as hospital grounds. There’s an apartment building just constructed on that land, so I know it’s no longer hospital grounds. So I deleted that marker, but I added the Florida Health Care building which, while not associated with the hospital, is right across the street.

Finally, yesterday evening’s walk brought me by two Stetson dorms that weren’t tagged on the map. So I changed them from building to dorm and added the name to them.

Finally, apparently my application to the OSM Foundation was rejected because I used the wrong user name. Duh. So I resubmitted my membership application.

voilà mon image 1