Recent diary entries
I'm chugging away slowly at SA Road Naming - we've refined the processes quite a lot, and gotten into a nice working pattern.
The benefits of this data being in OSM are heavily focused on navigation and routing.
The tasks are typically one of three things:
- Find roads without a name in the JOSM file, download just that area, name it and commit it
- Find a missing road - copy and paste it in.
- Check Keepright or an OSM mirror for Almost Junctions, and fix up any that were created from the last task once a week or so.
The result is about 100 or so roads get added or named every 1-2 days - you can get a sense of the progress so far:
- 22 Mar : 5112
- 23 Mar : 4745
- 25 Mar : 4267
- 27 Mar : 3998
- 28 Mar : 3866
- 30 Mar : 3700
- 31 Mar : 3660
- 3 Apr : 3547
- 4 Apr : 3411
- 6 Apr : 3318
- 8 Apr : 3301
This kind of job is really well suited to a Map Roulette job, but to do that means I have to stop working on actually adding in any content - so I could use your help; so that I don't sped the next 33 days going slightly batty.
- Grab the current file and whack 10 or so road names. If 10 people fixed 10 names each day for 10 days(!) we'd be pretty close to finished.
- See if you can set up a Map Roulette project - my (stalled) progress to date can be found at https://github.com/CloCkWeRX/osm-scripts/tree/add_maproulette - contributions heartily welcomed.
I decided to search for my local pizza place on google. I got a fairly good hit via their google+ listing, but their actual website was missing.
The node that I'd tagged myself is fairly well described, and I ended up updating both Google mapmaker and OSM.
It occurs to me that even if we're not trying to compete with google in the local business listings, it would be interesting if we could build on it. If I've mapped an area, I want others to benefit from the data I've created.
Take for example, amenity=restaurant.
We know about 350,000+ of them:
325 659 have names. 150 598 have cusines. 44 900 have websites. 36 416 have phones.
Imagine if we were to change
... when we had enough authoritive data.
Google Rich Snippets (https://support.google.com/webmasters/answer/99170?hl=en) are just one of the benefits - schema.org, with RDFa would enable OSM to very quickly join the linkeddata (http://linkeddata.org/) web, and possibly provide a real world application or two in doing so (as compared to http://linkedgeodata.org/ which is great, but I've never used as an end consumer for example).
I'd import it if I could be bothered fighting the technical challenges. The main problem is not the pain of converting the shapefile to something OSM understands, but avoiding duplication given the granularity of modelling in both datasets.
Instead, I'm spending a little time using OSM Inspector to find clusters of unnamed roads and fixing them by hand.
I'm doing this by:
- Using QGIS (sudo apt-get install qgis)
- Loading the shapefiles provided
- Changing the rendering to show the road name as a label
- Manually inspecting the shapefile to discover street name + type (it also contains surface, width, etc info)
- Correcting OSM
It'd be nice to evolve this from manual processes into a few automated sanity checks (find a list of all unnamed ways, find the corresponding candidates from the shape file, present to a user), and in the other direction provide the dataset providers a GeoRSS feed of new changes - particularly if people map into new areas; where for example OpenStreetMap currently has the most detailed maps of the St Clair Redevelopment.
If you want to lend a hand, or shepard the import of suburb boundaries through the import process, please reach out :)
I'm still really keen on MapCraft, especially since my original pull request got merged, and added some of the 'sort by updated time' behaviour.
This weekend, I've
- Added a topic to the chat
- Fixed an annoyance with updating unclaimed slices
- Made timestamps in chat more useful
There's a fair few open feature requests there, but most are quite old. I'd be quite interested to know what people want to see - I've been fixing my own issues first and foremost.
A quick update on the coverage of Adelaide/SA areas, touching on residential buildings, McClaren Vale vineyards and a few others
Relatively low effort to pull together - 10 hours perhaps? from start to finish, split over two sessions.
Demonstrates * SimpleXML/PHP to consume the overpass API and results * Simple Leaflet usage * Rendering of polygons from OSM data.
... are just about done.
I've covered Port Adelaide itself, Rosewater, Alberton, Pennington and Cheltenham. Osborne, Wingfield, Athol Park and Woodville / Woodville North are partially completed; plus to break up the boredem, much of McClaren Vale's vineyards are identified too.