OpenStreetMap.org : Open Licensed GeoData

Harry Wood

I'm going to talk about the OpenStreetMap project.

A lot of you will have heard of it

people are increasingly interested in Open Licensed GeoData.

Open Licensed

FREE

Costs 0

As with open source software, open licensed data is all about being free.

Free as in 'costs nothing' and...

Open Licensed

FREEDOM

free as in 'freedom'

The NeoGeo Revolution

Mash-ups

Visualisations

Freedom?

NeoGeo ideas are all about free and freedomGeo Power in the hands of small players. Revolution!

Powerful flexible APIs for mashing in datasets and doing snazzy visualisations.

These services give us a lot of freedom right?

RAW DATA

Freedom is all about the raw data.

Not just about layering your own data onto map

Have all the map data right there on your GIS system.

Raw data is what it's all about. Big players hold the data. You always pay to license access and use of raw data.

...until now

Building a map from scratch

No copying, No tracing, No deriving

On the ground surveys

Fun with gadgets, or just with paper

....lot of work

GPS

Community

Lot of people 180,000 registered users

Community

Increasing editing activity

Large online community. Many handsOpenly editable (and easy)Poor quality contributions?Gradual refinement

Assume good faith

Monitoring and history features

....Remarkably it works!Sounds familiar?

Also Open Licensedand not-for-profit

Street level mappingFootpaths, POIS

CompletionVariable. Wherever we have mappers

New mappers appear all the time

Can only get better

AccuracyGenerally very good

OpenStreetMappers take pride

Nodes Ways

Tags

amenity=pubname=Hare & Hounds

highway=residentialname=Court Street

XML APIRead a bbox of map data

Write changes to elements. RESTful

Planet downloads7 Gb compressed XML (or smaller diffs)

Load in to PostGIS

Generate shapefiles(downloads.cloudmade.com)

Render using Mapnik

Data Access

CloudMade.com Style Editor

http://maps.cloudmade.com/editor

\

Take the free data

Take regular updates

Feed your data in?

Work with the community

......

openstreetmap.org

harrywood.co.uk

Harry Wood's interest in internet collaboration and web2.0 technologies lead him to the OpenStreetMap project three years ago, as a hobbyist mappper, and as an increasingly passionate evangelist, community coordinator and developer. Turning this hobby into a profession, he worked at CloudMade developing core features of the OpenStreetMap website and working on CloudMade products and services which help developers use OpenStreetMap data. In 2010 he plans to operate as a freelance OpenStreetMap consultant

http://harrywood.co.uk

These slides are (of course) freely re-usable under the Creative Commons Attribution-ShareAlike 2.0 License

Map images cc-by-sa2 OpenStreetMap.org contributors. CloudMade.com, OpenCycleMap.org, OpenPisteMap.org, pnvkarte.deThanks also to thedesignsuperhero.com for free clipart