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Mapping Neighborhoodness

Andy Woodruff
October 20, 2015
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Mapping Neighborhoodness

NACIS 2015 presentation about crowdsourced mapping of Boston neighborhoods

Andy Woodruff

October 20, 2015
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Transcript

  1. MAPPING
 Andy Woodruff Axis Maps | @awoodruff Tim Wallace New

    York Times / University of Wisconsin | @wallacetim bostonography.com 
 NEIGHBORHOODNESS
  2. Official lines must be drawn somewhere, in order to facilitate

    things like censuses, urban planning, municipal services, mail delivery, government representation, &c.
  3. Sometimes a line drawn for one purpose is used for

    another because it’s convenient. And all lines might differ from prevailing local perceptions.
  4. Dr. Azzie Young, president and CEO of the Mattapan Community

    Health Center, says that the issue over the proper boundary has “caused great furor” in the past. “The major issue with the expanded map is that it could seriously skew data for Mattapan,” says Dr. Young, particularly with regards to health issues and crime. Bill Walczak, president of Dorchester’s Carney Hospital, says that confusion caused by the shifting boundaries presented a quandary for him when he ran the Codman Square Health Center. It makes it more difficult for educators and health professionals to track trends over decades when the borders keep changing, says Walczak. http://www.dotnews.com/2011/case-flawed-map-work
  5. Number of polygons for Neighborhood X intersecting grid cell Measuring

    consensus Total number of polygons for Neighborhood X ÷
  6. 1. Limited to the city of Boston. Lots of people

    in “Boston” don’t live in Boston. 2. Limited set of pre-determined neighborhoods. 3. No information about the people who drew on the map nor insight into why they drew what they did. 4. Not a representative sample. Cool, but…
  7. PNW Neighborhoods by Nick Martinelli Inspired by our project, but

    way better. So we, in turn, made a new version using his open-source project. pnwmaps.com/neighborhoods github.com/enam/neighborhoods
  8. Early feedback suggested shifting focus away from edges and toward

    points that are central or important to neighborhoods. Participants are now invited either to draw shapes or to place markers—or both! More than boundaries
  9. No restrictions on geography or names: it’s no longer Where

    is Neighborhood X? but rather What/where is your neighborhood? We collect more information: how long (if at all) people have lived in the neighborhoods they drew, and any stories they want to tell about a place. Broader scope
  10. Simply trace a shape with your mouse— or your finger.

    We hope that this, along with mobile- friendly styles, makes it easier to reach more participants. Easy to use
  11. JavaScript / Leaflet Modified versions of Leaflet.FreeDraw and Leaflet.Editable for

    drawing. CartoDB Shape data are posted to (and read from) two tables—one for polygons and one for points. Technology
  12. Look at the length-of-residency data. Reach more people in underrepresented

    areas. Work with people who might be able to use this kind of data or tool! To do:
  13. People still disagree. “Your map is wrong!” remains a common

    first reaction to our analyses and explorations.
  14. Thanks! …and if you know Boston and contribute at http://bostonography.com/hoods

    Double thanks! bostonography.com • @bostonography • @awoodruff • @wallacetim