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In Limerick. Previous: (No notes from Manchester). Next: Amsterdam


Steve Chilton

Need ways of moving ways parallel to themselves, to split multiple ways in same location

Need multiple symbols in same location, e.g. callout boxes


Border between Northern Ireland and Eire isn't mapped in detail (partly because the signposts are minimal or nonexistant). Would be interesting to try the Morwen method of border mapping, except that might be difficult in country roads without a physical indication of the border.

John MckMultimap

Idea of wrapper layer around different search engines

Limitation of Flickr, is that there's no way to modify someone else's picture, so incorrect photo-locations can't be fixed

Simon Cortesi - Italy

Managed to get daily radio coverage for a long while of the mapping events


Would like to see some way of paying for ad-hoc projects that require OSM knowledge, with minimal effort on the part of whoever needs the work done.


London underground tagging is pretty bad at the moment. You can't extract tube stations because they're just railway=station that happen to be on an underground line (i.e. no node filter will work to extract them). And often the underground stations aren't even connected to the lines!

Darr Grant

Interesting web app:

For things like openstreetbugs, it would be good to have feedback to whoever reported the issue, e.g. an email from the surveyor to say that they went there and what changes they made → a more personal interface and better reason to report issues with the map

Would be nice to have a "report error" button (should be quite easy in Rana for example]]

Peter Miller

Peter Miller has actually done the OSM watchlists, with all sorts of ways to monitor changes in an area!

OSM Japan

How do you represent complex 3-D structures in OSM? The example given was a tube station with about 6 layers each containing trains, underground trains, buses, etc.


The area of interest is Totora. Project with involvement by local universities. Would like some funding in parallel to gpsToGo.

Mapping parties



Chippy has a map rectifier. Apparently the old metacarta one was closed-source so we needed to replace it. Award for the shortest talk.


So how do you tag something which is both a runway and a road?

RWeait Canada

Lots of government data is becoming available...


Tile data server, yeah... Apparently I need to talk to Steven Donald who's doing something similar [note: missed his talk while at relations workshop, need to get video of it]

AND and thanks for all the pens

Introduced, which is a potlatch-alike map editor


Very cool print-on-demand idea for the wiki pages; the books they make are excellent quality.

Using name-matching to link items in the wikitravel databases to OSM items. goodluckwiththat

They need renderers to be able to produce numbered icons for any given feature on the map. e.g. restaurants wouldn't all have the same icon but they'd get numbered icons that link to some page text.


OpenRouteService by the university of Bonn. [discussion later - it might be nice to do some more personalised routing options for that, but would need a new source of funding]

Interesting to plot isolines of routeable distance from a point, as way of testing routes.

Apparently there is some traffic-jam data freely available... [update: on further discussion this turns out to be available only via some special radio-receiver and not published on the web]

Renauld Martinet / France

Mention again of openstreetbugs

Mike Collinson / OSMF


Ordnance Survey

They ask people for the names of a place. [at least we have street-signs instead of writing-down what we thought they said!].

Apparently the old OS people used to dress like redcoated soldiers and wander around Scotland just after the wars asking for placename data... and then wonder why they ended-up with so many rude placenames in the area!

Gave some excuses for their existance (e.g. the importance of promptly updating oil terminal and mountain maps)

Dodged a question about the OS gaming the UK press (by releasing a silly story on the same day as some report came out about their uselessness, and relying on the newspapers to print the most amusing one)

State of the Netherlands

Once the base-map gets completed, apparently lots of specialist mappers move-in to add their own favourite features. So the original explorers leave when everything is done, and are replaced by a different type of contributor who would maintain the map.

Apparently we had the first Frisian-language map, much to the delight of local press

OSM map is being used as base-layer for some roadwork-map by the government, which is encouraging


SteveC is offering tiles, including a 64-pixel version for mobile devices.

Made the point that Potlatch development would be nice, especially in preference to non-core programs (e.g. instead of new programs which use OSM data, try helping the programs which handle the data)

Idea that routing algorithms really should know about hills, especially for routing cyclists or pedestrians. Example given was San Fransisco

Google / Ed (he invented location y'know ;)

Map Maker is used mostly by employees so far, e.g. to map India so that Google can sell location-based advertising to Indian companies. Another example, Burma was mapped in 10 days by a team of employees.

Dodged question on whether any of the public were donating their time to help Google...

They don't like attribution license because it's difficult to verify that the contributors actually have permission to upload their data.

Question about why they're so secretive about products [Apple-style, keeping everything top-secret and then suddenly announcing it on launch day]

Question about: given that Google would like to use this OSM data but are worried about licensing - why not dedicate a few lawyers to investigating it since OSMF need some commercial users to verify that it's usable.

Google believe that deriving points from images is within the terms of their imagery license, but tracing features from the image isn't.

Google bought licenses to derive data from various patches of aerial imagery, but didn't pay enough to extend the license to people creating free content [unlike Yahoo who have bought derivation rights for the use of OSM].

Sean Gorman

Geocommons stores a bunch of geodata in a common format, making it easier to access with standard queries

Program called "Maker" looks quite cool, is scheduled for August 2008 release

Andy Allan / Cycle map

In Netherlands, it's points which are numbered rather than routes → leads to some interesting differences in map rendering.

"Unwind" is a good word for applying route relations to ways

rsync used to render tiles on one machine and send them to webserver without distupting it too much

Tutorial for how to add transparent lines to a map - just drawing them all with an alpha value means you get weird shading effects where several lines overlap, or at the join between two lines. It's better to render everything solidly into a separate image, and then add the entire image as a semitransparent layer afterwards.

Cycle map is transferring 220GB/month.

Good idea of having extra zoom levels available where there are junctions

Joto / Germany

13 local user groups (with interesting competition for who can map to the most absurd detail, e.g. individual grave stones within cemetaries)

14000 flyers printed, looking very nice.

Printed maps had to be done by much manual fiddling of data, e.g. moving OSM ways of roads close to a river, and editing the bitmap to remove SVG artifacts

Project in Köln where OSM was being done as part of a school project (sounds like a good way of teaching geography)

Testing a renderer that shows house-numbering (example location in Germany somewhere) Karlsruhe schema

Ben Clayton / HP labs

Authoring tool for location-based games on mobile devices. Mscape,

Apparently the commerical data wasn't suitable for them since they needed it for pedestrians, and all the commercial companies only had data for car routing!

Interesting data-driven location matching. For example, if you have a location-based game that requires some train station within 1 mile of the start point, then OSM data can be used to map that to actual locations in lots of different cities automatically, creating lots of areas where the same game can be played even if it's some complex treasure-hunt type game. Also things like noughts and crosses played on a field where you have to run to the place that you want to place your virtual symbol, sounds quite good as an excercise thing..

Virtual golf, where the golf-ball on your PDA bounces off 'real' buildings in the area you're standing, and you have to really walk to wherever your virtual ball landed.


Park maps, showing where various plants and gardens are (they have WiFi in parks apparently in Japan)

Relations workshop

Mario, GSOC

Wrote an osmarender frontend in firefox javascript, looks quite good

Mikel, India

Landmark icons would be nice (this is an idea I mentioned before, e.g. being able to link to particular images from within a node, or even putting SVG within a tag, so that certain nodes have unique pictograms)

Routing via landmarks (i.e. using nearby nodes as the descriptive text rather than node names)


Motorbike routing - would be nice to select very tightly-curved roads. Perhaps this could be measured using the RMS of the 1st derivative of segment bearing?

Relationships used for outlines of areas - perhaps the outer edge of a polygon could be comprised of multiple ways, where they are all included in the "outer" role of a multipolygon relationship