Nottingham hack soc

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Presentation on OpenStreetMap to Nottingham University HackSoc

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Nottingham hack soc

  1. 1. Hacking with OpenStreetMap and other Open Map Data Jerry Clough, (aka SK53) OSM Contributor Maps Matter: http://sk53-osm.blogspot.com/
  2. 2. Outline ● Intro to OpenStreetMap – Mapping – Humanitarian Uses – Example, Haiti Earthquake 2010 – Challenges ● A simple (geo)Open Data hack ● Addresses & POI Matching – Critical to improving OSM data everywhere – Improve efficiency during Humanitarian crises ● OSM Tool Hacks ● Fun Hacks
  3. 3. OpenStreeMap in Haiti, January 2010 Case Study of Mapping for Humanitarian Purposes A personal experience
  4. 4. Call for action  First message at 05:28, 13 Jan 2010 from Mikel Maron. You have likely heard about the massive quake that has hit Haiti OpenStreetMap can contribute map data to help the response .. http://wiki.openstreetmap.org/wiki/WikiProject_Haiti#2010_Earthq uake_Response Thanks Mikel  –  My first edit at 17:17 13 Jan 2010 http://www.openstreetmap.org/browse/changeset/3611391
  5. 5. Initial edits around Port-au-Prince   Adequate aerial imagery ex. Yahoo Existing major roads imported ex. Haiti mapping service – –  Part of earlier initiative for Hurricane Gustav Mostly experienced OSM contributors Some names from DMA topo maps
  6. 6. GeoEye imagery  14th January (Christoph Schmidt, telascience)  Damage assessment  Infill mapping  Resolve ambiguity
  7. 7. Displaced People Camps   Example of development of ad hoc tagging Camp site already rendered on main OSM render (mapnik) – –  Tile refresh in order of minutes IDP could be shown quickly tourism=campsite, refugee=yes – Don't get too involved with conventional meaning of tags
  8. 8. Damage assessment • Buildings – building=collapsed – building=yes earthquake:damage=collapsed • Roads – impassable=yes – barrier=*
  9. 9. Geofabrik Downloads  Standard service for community – – Many extracts for most of Europe – Larger area extracts outwith Europe –  Daily frequency North America not then covered A specific Haiti extract added – – Special landing page –  5 minute refresh frequency Later extended to cover whole island of Hispaniola OSM extracts SHP files Garmin IMG files
  10. 10. Bridges  NEMA asked if we had bridge information (14:00 Jan 14)  Checked they had geofabrik shapefiles (16:50 )  Asked Geofabrik if they could add bridges  Mapped 60+ bridges  Bridges added to shape files  Confirmatory message to NEMA (20:52)
  11. 11. Garmin download ● Multiple Garmin downloads (mainly created using mkgmap) ● Geofabrik ● All-in-One map ● ● Multiple overlays & base map Contours from SRTM data (cpgsmapper /GroundTruth) ● NC distribution not integrated with OSM Maps ● Separate transparent overlay layer
  12. 12. DMA Gazetteer 1994
  13. 13. Street Names  Names were available from 1994 DMA map      266 2010-01-27 224 121 80 2010-01-30 Ushahidi & SAR 2010-01-26 2010-01-29 About 1200 in total 387 2010-01-28 Not as psychologically rewarding to map 569 2010-01-25 Slow workflow No. Unchecked/unmapped 2010-01-24 Awkward to find Date 72  Critical information 2010-01-31 35  Rectified DMA maps 2010-02-01 57  Gap reports 2010-02-02 38  Click through listings 2010-02-03 22 Nominatim on wiki,
  14. 14. Maps for Dogs ● Nottingham Open Streetlight data contains streetnames and location
  15. 15. Maps for Dogs ● Nottingham Open Streetlight data contains streetnames and location
  16. 16. Addresses : the real challenge ● Food Hygiene Data – 400k premises – Whole UK – 15% of all postcodes – – Bars, schools, hospitals, restaurants Geolocated (only to postcode) ● Land Registry Prices Paid – 18 million house prices since 1995 – England and Wales only – Address data only
  17. 17. Matching Data
  18. 18. Deriving Information from Land Registry Data
  19. 19. OSMLY

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