Recent diary entries
I keep coming across beautiful OSM-based maps! Here is one for Poland:
Go explore for yourself here.
We are trying out something new here in Salt Lake City, Utah: Saturday Mapternoons. The next one is tomorrow, and I am looking forward to it. Saturday Mapternoons are a mix of mapping, catching up with fellow local OpenStreetMappers and geeking out over all things geo. If you're in the area, join us!
Check out all upcoming OpenStreetMap Utah events on our meetup page.
(This was originally posted on my blog. I want to start posting here more instead. This is a start.)
If you follow the blog at openstreetmap.us, you will have heard about the Battle Grid. It is a map that shows you where recent TIGER data is different from OpenStreetMap data. Because TIGER has improved a lot over the years, and has kept up reasonably well with new road construction, a big difference between TIGER and OSM tells us that OSM likely needs some love. Here is how the battle grid looked until today:
Cells with a lot of difference between TIGER and OSM are brighter, and as a simple way of prioritizing the cleanup and update work, I colored the cells that are within a Census CDP orange, and the rest green.
As of today the Battle Grid will look like this, instead:
The brightest cells are still the most different. What is new is a color spectrum ranging from green to red, indicating how many people drive in and through each cell. This is based on Telenav logs. Because lots of people use Telenav apps such as Scout every day, it should be a fair representation of interestingness.
Let me show you a few examples of bright Battle Grid cells to whet your appetites.
Here’s a bright red cell in Greenville, NC:
Look at this! Missing subdivisions, and poorly aligned streets. A mess!
If I weren’t writing this blog post I’d be fixing this…
The green cells are usually no less, ehm, interesting. Here’s one in Saint Louis, MO:
I guess someone had a plan for this area, and the someone with more money / power came along with a different plan, and nobody ever told Census:
What I generally find is that the bright cells on the fringes of urban areas are most gratifying. These usually represent either poorly aligned OSM data, unmapped new subdivisions, or a combo of both.
Speaking of fringes, I think Atlanta has a great visual Battle Grid story:
The city itself is well mapped with very few bright cells. (And whatever there was is mostly black, so people have already marked them as done.) The fringes still show a lot of, well, let’s call it mapping potential!
What are your favorite Battle Grid finds? Share them below!
I was just looking at my user map to see what's going on with OpenStreetMap users who are in my area. It turns out many of them have zero edits. They signed up for OSM, even put in the additional, optional effort of setting their home location, but never edited. Why?
That is the Big Question we want to try and answer in the Welcome Working Group. That, and trying to come up with solutions for the 'retention problem'. Simply said, provide a warmer welcome to new users. Our focus will not be on editors. Rather, we want to look into documentation, welcome messages, incentives to map.. You could say: the social and educational dimensions of welcoming newcomers to the community.
Do you think you have something to contribute to this process? Helping (re-)write documentation? Research new user behavior? Another angle you would like to explore? All it takes is constructive ideas and some time to act on them. We meet on #osm-strategic every Thursday at 1900 UTC.
I'm back in Amsterdam for a bit. I haven't really have time to do any mapping yet but I'm happy to see that the area where I'm currently staying is now littered with POIs - bars, restaurants, shops, all the goodness that the Leidseplein area is well known for. Even the recently started Starbucks Invasion into the Netherlands is already reflected. Most places have URL and/or phone number data associated with them. It looks like we have user stroet43 to thank for most of the recent improvements in this area. Great work! I don't think I've met him or her. Maybe at the upcoming New Year's Drinks in Utrecht? I don't see a link to it anywhere on the OSM wiki, but they're in Utrecht this Sunday. Inquire on talk-nl if you want to know more I guess. See you there?
I got on the remapping train. It looks like Salt Lake is pretty severely affected because of a small number of decliners. I approached one of them, and he is not changing his mind. Approaching the other few soon. In the mean time, I'm focusing on the main road network. There's even a few miles of interstate that will need to be remapped. A lot of work, and not the most fun job. On the other hand, I get to (re)visit some places that could use some improvement.
You can reliably measure how bored I am on any given day by counting how many trees I have mapped on that day.
to set up a local Amsterdam OSM mapping clubje
did IJplein this afternoon and some Java-eiland
We had a good first day of the Amsterdam Mapping Party. I made my very first contribution to OSM: my oen lovely neighborhood Staatsliedenbuurt. And because the weather was super, I took the dog for an extra long walk around the garden complex 'Nut en Genoegen' ('Purpose And Joy').