I think I have mentioned before that the Telenav OSM team is always thinking of more ways to help improve OpenStreetMap. Something we have recently started looking into is supplying proposed changes directly as JOSM compatible XML files. This way, we could propose changes and additions to the map in chunks, instead of one by one like we have done for MapRoulette thus far.

So looking into the JOSM file format, we created a small (hypothetical) test file that just adds some ways that connect to the current network. Shown below is the process of merging that test file with existing OSM data in three stages: Base OSM layer, change layer overlaid, and finally the merged result.

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Dual carriageways, divided highways… Whatever you call them, this is what they look like:

Image: Wikipedia

In OSM however, they are often mapped like this:

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Hi folks,

The Battlegrid had been down for a while and I have had no time to look at it really. Until today! The Battlegrid is back up. And it now compares with the latest TIGER 2014 data, so bright cells should more often be a treasure trove for real problems.

If this is the first you hear about the Battlegrid, read much more about it in the original announcement blog post.

What are you waiting for!? Fix some cells, head over to battlegrid.us!

Image credit: AARoads

Here at Telenav, our editing team has been working tirelessly on adding signposts to OSM for the past months. Today, I am happy and excited to report that we have completed this major editing project! We added signpost information to over 9,500 exits across the United States, covering more than 25 major metropolitan areas and a few important connecting freeways as well:

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Scout (USA) has been powered by OpenStreetMap data for about 5 months now. From day one, Scout users have been able to report navigation errors to us:

We have since received thousands of reports and we have worked hard to review them and learn from the feedback we get from our users. We have manually submitted OSM notes where we could not resolve the issue ourselves, and we have fixed dozens of map issues based on the incoming reports. But we felt that we could do a better job closing the feedback loop between Scout users and the OSM community. We have now taken another big step towards this goal with direct OSM Notes creation from Scout US.

Some Scout Feedback will automatically become OSM Notes

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Making a MapRoulette challenge has always been a bit of a, well, challenge. I wrote a tutorial in an attempt to explain the process, but in the end, it is still more work than I would like it to be, and more technical than I would like it to be, too.

So I made something new: the Magical MapRoulette Machine!

The MMM lets you create a MapRoulette challenge interactively. Just answer a few simple questions and your own challenge can be live in minutes. The key component, the part that actually defines which OSM ways or nodes you want to have fixed, is an Overpass API query. If you are not familiar with writing queries in the Overpass Query Language, that would be the only thing you would need to learn a little bit about.

How do I use the Machine?

First download and install it using the instructions on the project page.

Once you have the Machine on your machine, you can just run it in interactive mode by calling it like this: ./mmm.py. It will then ask you a series of questions about things like the Title, Instruction, Help text, etcetera. All those bits are explained in the MapRoulette Tutorial.

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I am headed to Buenos Aires for SOTM 2014 tomorrow, and reading up on money and general travel tips. I found this page on bringing and exchanging money. Some of the tips in there:

• Bring cash, preferably in US$50 / US$100 bills
• Pay in US$ whenever you can.
• There is an unofficial ‘blue dollar’ rate that is much better than the official US$ / Peso rate.

I have never been to Argentina before, and I have no idea if these are good tips. Perhaps an Argentinean mapper can shed some light on this?

See you at SOTM!

I know, I’ve written about TIGER before…Quite a few times. I’ve pointed out problems from time to time, but I have also attempted to come up with solutions, like the Battle Grid.

Today is another being-part-of-the-solution kind of day. We (a few colleages at Telenav were involved in this) took the output of the Battle Grid comparison we use to generate the Battle Grid cells, divided them into more and less severe cases based on the road class and amount of difference between TIGER and OSM, and created a MapRoulette challenge out of the more interesting cases. This will make it easier for anyone to help fix antiquated, bad TIGER data anywhere.

This is what a typical case would look like in MapRoulette:

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If you have logged in to MapRoulette today, you may have noticed that the Ways Needing Smoothing and Crossing Ways challenges are now gone. There is a simple reason: they are done!

Congratulations!

Together, we resolved more than 100 thousand suspected ‘sharp angle’ errors in the Ways Needing Smoothing challenge, and just under 25 thousand crossing ways in the Crossing Ways challenge.

So at least for the United States, we now have much less of this:

.. and many less situations where two ways cross but should really have an intersection node. (Sorry, in this case an image does not say more than a thousand words..)

Not all suspected cases turned out to be real errors. For the crossing ways, about two thirds of the cases were eventually marked as ‘fixed’ by MapRoulette users:

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There is a well-established definition for tagging National Parks in OpenStreetMap.

Hooge Veluwe National Park Image credit: Wikipedia

The definition,

A national park is a relatively large area of land declared by a government (just as boundary=administrative are declared/recognised by governments), to be set aside for human recreation and enjoyment, animal and environmental protection

would also apply to the many State Parks in the United States, and perhaps provincial and state parks in other countries as well. However, the boundary=national_park page does not give any specific guidance. I am about to map some state parks in my home state Utah, and I will tag them with boundary=national_park for now because they fit the definition.

How do you map state or provincial parks in your area?

Playing MapRoulette, you get dropped in all these random locations on earth. This really makes my mind wander sometimes.

Here is Cambridge, Ohio:

Image credit: Wikipedia

A nice enough town. Probably friendly people. BUT NOT VERY MANY MAPPERS AMONG THEM:

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Sometimes I wonder if those TIGER surveyors were just having a grand old time making up things as they drove past and casually looked out of the window of their cars…

This whole area needs lots of work - if you want to help out, that would be great!

(I have no personal or other connection to the area, but got dropped there by the MapRoulette ‘Ways Needing Smoothing’ challenge - freshly cleaned up, so most cases you get should now be real things to fix!

I joined OpenStreetMap in June 2007. A lot has changed since then!

Amsterdam

Birmingham

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I’m seeing this all the time now when trying to use iD on my Mac!

What’s up? There’s a recent bug that seems related. If you’re experiencing the same thing, see if you can weigh in there.

It looks like there’s a more recent version of iD up here, give it a try if you get crashes as well.

MapRoulette silently added a new feature a while ago: the ability to select an area you want to work in. This is one of the most requested features in MapRoulette and I am pretty excited to publicly announce it!

Here is how it works. Go to MapRoulette and select a new challenge. You will see this screen:

Notice the button at the top? It says what it does on the tin - it lets you select a work area that will be remembered until you cancel it. (I will show you how to do that later.) When you click the button, the challenge selection window disappears and you will get this notification:

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Let me update you on some of the goings on at Telenav related to OSM.

Scout OSM data update

First off, we released new OSM data for the US Scout app on July 15th. The OSM data is from July 3rd. No app update is required; just launch Scout and it will automatically use the latest data. We are currently updating the OSM data that drives Scout about every other week.

If you haven’t tried Scout yet, you can download the latest version for Android here, for iOS here.

Note that the Scout International app (formerly the Skobbler GPS Navigation app) has its own data update regimen that is independent from the US version of Scout.

Signpost tagging

We continue to improve OSM data for the United States as well. We are focusing on signpost information right now (the information that you see on the freeway exit signs).

Image from AARoads

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Reality

OpenStreetMap

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Mapping opening hours correctly can be a pain; the format for the opening_hours key can be hard to remember. I didn’t use to do it much for that reason. Until I recently discovered that there’s a JOSM plugin for that! It works really well, let me show you how I added hours of a local restaurant in seconds.

First, of course, make sure you have the plugin installed:

Then, select the thing you want to add opening hours for:

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I like the Watchlist on the wiki - it helps me keep track of changes to pages I care about. When you are logged in, you will see a link to your Watchlist in the top right corner:

If you click on it, you get an overview of changes to the pages you added to your watchlist:

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I have been following Mapillary with a good deal of interest, because they provide an open ‘street view’ platform that is explicitly aimed at improving OpenStreetMap.

Here’s an example of a Mapillary image and map context:

I have created an account and did some test shooting from my car, using the iPhone app Mapillary provides. This is OK, but I want better quality images. So I am looking at an action camera I can mount in my car and on my bike.

After doing some research, I narrowed the field down to two contenders: the Garmin VIRB / VIRB Elite and the GoPro Hero 3.

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