*** Presented by Guy Collins at State of the Map 2013 *** For the video (if available) please see http://lanyrd.com/2013/sotm/scphkt/ *** Full schedule available at http://wiki.openstreetmap.org/wiki/State_Of_The_Map_2013 Guy will discuss the initial map creation and the addition of more and better information. Better mapping means greater utility and acceptance of OSM as a viable alternative to other mapping solutions. Mapping should be seen as an evolutionary process as the map is built up from nothing to eventually showing whole countries. Within areas the completeness varies based upon how much activity the local community put in and what their interests are. A model will illustrate how best to help complete areas. Examples will be shown on how some UK places have made great strides to complete their areas, whilst highlighting some areas that have not managed to map to the same extent.

1. Evolving The Map To
Completeness
A proposed model.
Guy Collins BSc(Hons), FRGS, CGeog

2. Evolving The Map To Completeness
October 2009 (Mapnik)

3. Recipe for completing:
July 2013 (Standard)

4. Recipe for completing:
2009 (Osmarender)

5. Recipe for completing:
2009 (Osmarender)
July 2013 (Standard)

6. Evolving The Map To Completeness
Exeter, UK:
8th July 2007

7. Evolving The Map To Completeness
Exeter, UK:
27th November 2007

8. Evolving The Map To Completeness
Exeter, UK:
13th October 2009

9. July 2013

10. Evolving The Map To Completeness
•But, is it complete yet?

11. Complete?

12. Evolving The Map To Completeness
Voronoi Diagrams
“The partitioning of a plane with n points into convex polygons such
that each polygon contains exactly one generating point and every
point in a given polygon is closer to its generating point than to any
other.”
http://mathworld.wolfram.com/VoronoiDiagram.html

13. Evolving The Map To Completeness
Exeter Post Box Data From 01/13

14. Evolving The Map To Completeness
Exeter Post Box Data From 01/13

15. Evolving The Map To Completeness
Exeter Post Box & Post Office Data From 07/13

16. Evolving The Map To Completeness
Exeter Post Box & Post Office Data From 07/13

17. Evolving The Map To Completeness

18. Evolving The Map To Completeness
Salisbury Post Box & Post Office Data From 07/13

19. Evolving The Map To Completeness
Salisbury Post Box & Post Office Data From 07/13

20. Evolving The Map To Completeness
Lisburn Post Box & Post Office Data From 07/13

21. Evolving The Map To Completeness
Lisburn Post Box & Post Office Data From 07/13

22. Model Approach:

23. Model Approach:

24. Model Approach:

25. Evolving The Map To Completeness
Tools to Help: Quality Assurance
http://keepright.at/
Keep Right
http://tools.geofabrik.de/osmi/
OSM Inspector
http://osmatrix.uni-hd.de
OSMatrix
http://www.itoworld.com/product/data/osm_analysis/main
ITOWorld!
And others...

26. Evolving The Map To
Completeness
Conclusions