OpenStreetMap Presentation
OpenStreetMap
Enock Seth Nyamador09.09.2016
What is a map to you?
What is OSM?But first: What is open map data?
How many of you have used Bing Maps? Google Maps?
OpenStreetMap?
global, collaborative, free/open, spatial database
Tarkwa
Wikipedia of Maps
Mass Collaboration!
> 2 million registered users
Like wikipedia we do mass collaboration. We have over a million
registered users. These people can all edit the map.
http://wiki.openstreetmap.org/wiki/Stats
Map the World from Scratch
(No copying)
Tags
Using key = value pair to define map featuresamenity = fuel
building = yes
highway = residential
landuse = farm
http://wiki.openstreetmap.org/wiki/Map_Features
Nodes Ways
Tags
amenity=post_officename=Tarkwa Post Office
highway=residentialname=Post Office Loop
Everything in OpenStreetMap is made up Nodes and Ways, and these
things have Tags on them.
A node is a single point. It can be used to represent something
like a pub.
A way is line drawn between several nodes. It can be used to
represent a linear feature such as a road.
By placing tags on them (these name equals value pairs) this is
how we tell the system what this thing is. Tags are the
classification system.
We'll see nodes, ways and tags, and this will become clearer
when we take a look at the editor
Tags
Using key = value pair to define map featuresamenity = fuel
building = yes
highway = residential
landuse = farm
http://wiki.openstreetmap.org/wiki/Map_Features
No tags!
Yes tags!
Why contribute ?
OpenStreetMap is a project aimed squarely at creating and
providing free geographic data such as street maps, POIs, to anyone
who wants them.
OSM rponse un manque de donnes accessibles
What it looks like?
Go map the world
You map your neighbourhood; I'll map mine; With enough
contributors, we'll map everything.
Cartographier le mode, projet qui parait fou au premier abord
quand on en parle quelqu'un : pourquoi refaire une carte alors
qu'il en existe dj
Aussi fou que faire une encyclopdie, que de btir une
cathdraleProjet libre encore plus fou: voiture libre...
Un travail de fourmis
Exploration et appropriation citoyenne du territoireExcitation
comme les grands dcouvreurDcouverte de son quartier, de lieu proche
ou l'on passe
How?
Local knowledge
Tracing aerial imagery (Bing, MapBox, etc)
Imports
GPS traces
Someone puts it there, and others look at it and confirm that it
is correct
What it looks like?
What it looks like?
What it looks like?
What it looks like?
What it looks like?
What it looks like?
History
Editing OSM
OSM Account
iD
JOSM
Merkaartor
Fieldpapers.org
Fieldpapers in JOSM
OSMAnd
OSMTracker for Android
MAPS.ME
Vespucci
Potlatch
Pushpin
Others
What can I map?
Recording data
Names of streetsTypes of streets (trunk, residential,
motorway)One-way restrictionsFootpaths, tracks, pedestrian, rivers,
railwaysParks, woodland, industrial areas, cemeteriesPOI (pubs,
cash machines, post offices, post boxes, bus stops, toilets,
supermarkets, restaurants, monuments, hotels, picnic sites,
barriers, light houses, piers, sports centres, petrol stations,
playgrounds, cinemas, car parks, universities, tourist information,
etc etc etc
We need lots of people because we gather a lot of data.
It's not just basic street map data, it's landuse coloured areas
of the map, and all sorts of Points Of Interest details.
We'll get a better feel for what kinds of things to add as we
look at mapping later on.
Who uses OpenStreetMap data?
http://ghanaein.net/Who uses OpenStreetMap data?
Who uses OpenStreetMap data?
Who uses OpenStreetMap data?
Who uses OpenStreetMap data?
Who uses OpenStreetMap data?
Navigating With OpenStreetMap
OSMAnd
MAPS.ME
How can I use this data ?
Data is stored as XML (open)
Convertible to: postGIS, SHP, geoJSON & more
OpenStreetMap Use Cases
Haiti January 2010
photograph Agncia Brasil
Our best example of disaster response mapping is still the Haiti
earthquake of 2010. The earthquake struck and as OpenStreetMappers
saw the news...
Photo: Agencia Brasil
http://commons.wikimedia.org/wiki/File:Port-au-Prince_20_Jan_2010.jpg
...they saw our maps didn't have much detail, so they started
adding to it, using aerial imagery to trace out a road map.
Good detailed mapFast!
Pretty soon the community came together to produce a good
detailed streetmap. This happened quickly! The basic streetmap was
in place in about 48 hours.
OpenStreetMap suddenly had the best map available. The only map
showing all the city streets. This brought a lot of attention to
the project, and people were impressed that this map has sort of
spontaneously appeared through collaboration without the need for
any special instruction.
Please be assured that we are using your data - I just wish we
knew about this earlier.
And people used the map.
People used it online as a base map, presenting data on the web.
This is ushahidi layering data on top.
But more importantly, people were using it in Haiti.
OpenStreetMap printouts were going up on the walls in the aid
agency control rooms, and handed out to people driving aid delivery
trucks.
And here's a message and a photo from a search and rescue guy.
Somebody who worked very directly saving lives by digging people
out of the rubble. His teams were loading the vector data onto
their garmin device, to use offline.
Community
Gather and manually edit : convergence
Import
Ontology definition: Tags
Promote, communicate
Socialize and network
Convergence obtenu par contributions multiples, effet de
fourmilire : sur les donnes et l'ontologieSurveillance et
correction
On n'arrive pas la meilleure qualit possible par cette mthode,
mais un maximum local
Community
OpenStreetMap in Ghana
[email protected]
twitter.com/osmghana
facebook.com/openstreetmapghana
Humanitarian OpenStreetMap Team
Coordinating remote mapping
Brokering release of imagery
On-the ground deployment follow up
Getting organised
hotosm.org
I've mentioned the Humanitarian OpenStreetMap team (HOT) . This
is an organisation within the OpenStreetMap community, brought
together to do these things.
In particularly we'd like to engage with aid organisations,
organise funding for humanitarian mapping projects and deploy
people to run these projects on-the-ground.
HOT Tasking Manager
HOT Tasking Manager
HOT Tasking Manager
OpenStreetMap Ghana
[email protected]
twitter.com/osmghana
facebook.com/openstreetmapghana
Resources: learnosm.org
Resources: mapgive.state.gov
Resources: wiki.openstreetmap.org
Resources: overpass-turbo.eu
Resources: umap.openstreetmap.fr
UmaT, Tarkwa
Thank You
Enock Seth NyamadorGIS Enthusiast & OpenData
advocate@Enock4seth @[email protected]
Questions?
Is that all?
No!
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