Sanderd17 has commented on the following diary entries

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new at using JOSM - how go back and edit my work? 1 day ago

The changeset comments are handy, but they're not the most important. The data you added is more important. The changesets are just used to do some stats.

So there's no need to fix that, just use the right comment on the next tasks you do ;)

Ok, so I am a bit tired now 1 day ago

You shouldn't aim to be high in the stats. Quality edits don't result in high stats.

Quality edits require that you look for specific information, check and double check them. The higher quality your edits are, the slower it is to add. While the stats page only takes account of the number of nodes you added. So only imports and armchair mappers that trace imagery end up there.

Adding the name of a shop with the opening hours and contact info is a lot better for the quality of our map, but it takes a lot of time, and tag edits don't appear in the stats. While, if you're tracing imagery, you can easily add a few nodes per second, applying a simple, rather default tag, doesn't cost any time at all.

But yes, don't burn out too quickly, we need you to maintain the map too (keeping up with closed or newly opened shops f.e.)

I had no idea this was so additive! 3 days ago

Single trees that have some importance can be mapped with natural=tree: (including species information)

A tree row can be mapped as natural=tree_row:

And for the bushes, take a look at the complete list: Natural=scrub seems to fit the best to your description, but it could also be natural=heath.

About the paths, there is indeed some controversy (, but the rules used are mostly consistent within the country you are. So it's definitely worth trying to communicate with other mappers nearby.

Here's a nice map showing all mappers and their editing location: If you set your location in your profile, you also see other mappers who set their location and that are nearby. Apart from that, certainly go on the mailing list of your country. Mailing lists seem to be used more often than forums and IRC, certainly for country-specific communication.

Regards, Sander

Leaving messages for edit-work done 4 days ago

It's great that you try to make changeset comments. Many forget it. But usually it's enough to add some general info, like the region you're editing, if it's based on survey, a free dataset, personal knowledge, ...

But after all, changeset comments aren't the most important. They just help with finding back what you did (so you or someone else can check it again). The data is the most important.

New Category 4 days ago

Hi, first of all, I presume you're working with iD.

iD has a number of tags you can use by default, but if you want to view "all tags", you can click on that link below, and add any tag you want (note that tags should be objective, verifiable and informational).

That said, there is some discussion about "spa". It has multiple meanings (used for spring and wellness center), and because of that, the usage of it is discouraged. See

There is however a proposal to tag it without ambiguity:

If you agree with that proposal, you can already use the tag. You can also make a comment on that page.

Some notes on your current work however:

  • Don't capitalise entire words. It's a general rule to only capitalise the first letter in a word (unless it's an abbreviation). So use "Aloe Spa" instead of "ALOE SPA".
  • Don't duplicate tags. You name_1 is exactly the same as name, no reason to have it there
  • Don't put keywords in the note tag. The note tag is meant to show a message to future mappers (like telling that the job isn't finished, tags are missing, it might change soon, ...). In this case, your note could be something like "Find the correct tags", since you are wondering how to tag it.
  • Same with note_1, don't do that

Then there are some issues you probably didn't notice, but that do harm the data. You added the spa in a bus route relation. This damages the bus route and can make it useless. And you also made it part of a turn restriction (those are used by routers to know if it's legal to make a certain turn), again, this damages the turn restriction, making it possibly unusable.

I'm now going to fix some of those things. But you're welcome to keep adding stuff to the map. Remember, the better the map, the more people that will use it, and the more people that get to their destination easily.

Can I produce a Hypsometric tints in OpenStreetMap? 13 days ago

You can get free elevation data from NASA, and there are tools to convert it to be used with OSM data and be rendered (note that elevation data should never be uploaded here).

Check as a start.

The tools mostly mention rendering the elevation contours. But if you treat the contours as areas instead, you can fill them with the colour you want.

Also note that this isn't done very often for worldwide, zoomable maps. If you pick a linear scale, most things will be low compared to the mount everest, So even mountain will appear in a green-ish tint.

Survey = "No freaking way" or Mapping parts of the world no-one else wants to map, Part 2: HMP Sudbury, Derbyshire, UK 13 days ago

Some years ago, I amused myself mapping the different barriers:

Btw, a "doors open" day for prisons? Sounds like a bad idea. Sounds Belgian in fact :D

Wiki loves monuments - OpenStreetMap, too! 13 days ago

That Google trick you show depends on the language of the article. F.e., the Dutch WP doesn't have such buttons (see as example).

Nice overview for the rest ;)

Copyright question 14 days ago

Credit to the map must only be given when the map is installed.

Although I don't like Mapedy (since it just takes code from OsmAnd and adds some advertisement and some new icons), they aren't doing a lot wrong.

When you look in their "about" part, you see they credit both OsmAnd and OpenStreetMap. They don't offer the source-code for download, and they don't tell the licenses, so they're not completely OK, but they're not completely bad either.

5 dreams/ proposals for OSM headquarters (please comment) 14 days ago
  1. Mapnik looks nicer than Google maps, and Google maps is the market leader for most things involved online maps. So I don't think that map style makes a lot of difference.

  2. This would indeed help a bit with getting users to know the data behind the map, and could get us some extra mappers (if they know how the data looks, starting to edit it is only a small step).

  3. Sure, why not. Thematical maps are handy.

  4. Mobile apps offer a lot more than the data. They have own routing, own rendering, own searching. We can't possibly distribute a format that fits all purposes.

It's up to the apps to promote their features, and we can only hope that the apps will also promote OSM with it, so we get some contributors (if they promote OSM, they get better data, so their features work better).

  1. Depends on what you're editing. Not all features are equally big or important.
公共交通数据 17 days ago

You can read the wiki, though it's rather unclear now (in other words, it's easy to get lost).

But in general, when you add the bus stop positions and the roads the bus takes in a relation, that's the basics.

About apps using OSM data. Sadly, OSM can't maintain a time schedule. Since bus lines have variations, it's possible that a certain variation only rides one time per day, or isn't served during certain days. As such, apps can't provide you a route based on the data in OSM, as it could happen you have to wait a day before the next bus passes by.

There are however apps, like OsmAnd, that let you view the nearest bus stops, and gives you information about the bus stops (s.a. which lines are served there).

Some apps for specific cities can merge OSM data with publicly available time schedules (but this depends on the bus company), and can route you. But these are rare.

First Diary: Minor Fruit and Question 19 days ago

You're not doing anything wrong with the gully's (at least not as far as I can see).

It's just that they don't appear very often in the West, and since most people taking care for the rendering are from the West ...

For those terraces, I agree with SK53. Using a barrier=retaining_wall for every terrace will result in great accuracy, combined with the landuse=farmland.

But if you just want to place big lots of farmland at once (go for the quantity rather than the quality), you can just add a big farmland area on it, and tag it as terraced, as SK53 said.

It's all a matter of how much time you have, and how you want to use that time. Some want to map a small area until it's perfect, others prefer to map a bigger area, but with less details, and refine the details over time.

Thanks for the effort ;)

Premières impressions en tant que Contributeur OSM 19 days ago

Bonjour, bienvenue chez OSM.

Il-y-a tant d'applications des données d'OSM. La meilleur page pour voir des applications doit être sur notre wiki:

Donc chaque-un peut utiliser des données d'OSM pour naviger avec son smart-phone, ou pour voir des aspects différentes des données (comme des route cyclistes).

Mais c'est pas tout. Il-y-a aussi des organisations qui utilisent des données d'OSM. Flikr, Mapquest et FourSquare sont des examples. Parce-que notre données sont libre et gratuite, c'est aussi utilisé par des organisations humanitaires, comme le Crois Rouge et Médecins sans Frontières. (vois

Adding data to Cypress Cay and Gateway Elementary 22 days ago

Oh, then the layer tag is correct.

About that Tiger. A few years ago (the start of OSM in the US), the Tiger dataset could be used from the US government. Its quality isn't very good (there are lots of problems with non-connected roads, and even non-existing roads). So it was imported as "needs a review".

In other words, it was imported with the tag tiger:reviewed=no. Whenever you correct a road having such a tag, or you see someone else corrected it, but didn't switch the flag, you may set it to "yes" (and it's even better if you do).

You can see those tags by scrolling down, and clicking on the "all tags" link.

Though I thought iD would show that difference a bit better. JOSM (the offline editor) highlights all non-reviewed tiger roads, so it's easy to find them and switch the flag.

Adding data to Cypress Cay and Gateway Elementary 22 days ago

russdeffner, why do you put tags on the outer way instead of the relation?

It's highly recommended to put tags on the relation when you want it rendered with a hole in it. Certain data users (s.a. the main renderer, sadly) allow tagging the outer way as a fallback, but it's not guaranteed that other data users will support this.

If you want the hole rendered, you should tag the multipolygon.

iansan: your edits look mostly ok. When you've edited a tiger road (imported from the US tiger dataset), you should change the tiger:reviewed=no to "yes" (or completely remove that tag), since you know it's nicely aligned now.

I also see you put layer=1 on one of the buildings. The layer tag is used to show height relations of different object (f.e. two bridges above each other, which one is the highest). By putting layer=1 on the building, you seem to imply that it's possible to walk under that building, while I doubt that (layer=0 is the ground, but there's no need to tag that on all objects). So it would be best to remove that tag.

The rest seems pretty fine, thanks ;)

Kenosha Mapping 23 days ago

I don't see many polygons. The ground isn't even covered in polygons. There are many places (especially in Germany) where editing has become quite hard, as you keep accidentally clicking on polygons you don't want to touch.

And the polygons I see look not too bad in Kenosha. Note that they may be quite old too. Dating from a time where we had bad, or no satellite imagery at all.

It is true however that it's lacking a lot of data. There are no addresses, no points of interest, no shops, ... So you're certainly welcome to help in that area.

Witam 24 days ago

Hi, it looks like your city is already quite well mapped.

All housenumbers are complete, most buildings are drawn.

If you know the city very well, it might be good to add all sorts of points of interest. All shops, pubs, restaurants, ... Including contact info, opening hours, ...

Just zoom in to a part of the map where the shop is (zoom in far enough, otherwise, loading the data will take a while). Then click on the "Edit" button, and either add a point of interest, or add data of an amenity to an existing address or building.

State Parks and National Parks 26 days ago

leisure=park is completely different IMO. It's normally a man-made area where certain flowers are planted, paths made etc.

You could use leisure=nature_reserve for those smaller parks. Though boundary=protected_area seems to be the newer choice.

What's new in uMap 27 days ago

Very nice improvements to see.

There are however some usability problems I experience as a first time user. Maybe you guys can give it a thought.

IMO, it's hard to know what name you should set to show that name to people when they click on something. It's hard to see a difference between editing map properties, layer properties and object properties. I suppose a header in the right panel, saying "editing map settings", "editing layer x settings" or "editing object y settings" would help. Maybe for objects, even a colour code or coloured symbol could be added to distinguish between unnamed points, ways and areas.

The browse data button (which is extremely handy to get to the right object) is also rather well hidden. In the right-click menu, it's between "help" and "about", which isn't where I'd expect it. It's also hidden behind the layers button, which isn't where I'd expect it either. "Browse data" doesn't offer you a lot of control over the layers (and isn't meant to do so). So putting it under the layers is strange IMO. It would be better if it could be an always-visible button in the right of the screen (somewhere near the editing of the map settings and the background layers buttons).

It should also be possible to "disable editing" without saving the map IMO. This would ensure you're doing stuff correctly if you can switch perspectives easily.

When making maps anonymously, it's also way too easy to just lose your editing URL, and be locked out of your map forever. So I suggest that the default for anonymous-made maps should probably be that everyone can edit the map (so you're not locked out). Next to that, signing up really gives you a better user experience (you don't lose your maps), so it should be highly encouraged. Either with a pop-up on the first usage (sign-in popups are quite normal), or with a Wikipedia-like banner when you start editing anonymously.

The help menu called "directions from here" could probably also be renamed to "create a route with OSRM", which also gives the opportunity to have links to other websites (that may have better support for bikes, pedestrians, ...).

Apart from those usability issues, one big feature I'm missing is an export-to-paper function. Either to image, or directly to multi-page atlases. The first could be used to get an image for some folder you can print (f.e. with the location of a few stores), the second could be used to document a travel, or a cycle route you made.

I think this will tun out to be a very useful app for the big masses. Thanks for all your work on it.

How do I indoor map my building? 27 days ago

Note that indoor mapping is still rather experimental, and also rather difficult, as GPS position is hard to get inside buildings (certainly for the precision you need), and areal imagery doesn't help a lot.

The only thing you can use are images of floor plans, as a background to the existing building layout.