State Of The Map U.S. 2015/Hack day

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Monday June 8 of State Of The Map U.S. 2015 is the hack day with code sprints, documentation sprints, Missing Maps mapping party and a Maptime summit. Share your ideas and coordinate your activities on this page!

Code sprint

What are you planning to work on? Share here!

  • Adding support for note comments and/or note diff replication to ChangesetMD --ToeBee (talk) 06:32, 20 May 2015 (UTC)

OSM on Wikipedia

Help us bring maps to Wikipedia community, or work on creative map usage in the articles. By Yuri & Max.

  • For business people: help us outline possible use cases for maps on wiki
  • For frontend devs: experiment with map usage inside articles, or creative alternative wiki browsing experience (atlas, ...?)
  • For backend devs: hack on mapping components (Mapbox stack + extras). We are missing storage, fonts, invalidation. Targeting both client & server rendering.
  • For SQL devs: decide which features should be retrieved from the OSM database, optimize SQL requests
  • For designers: Style maps for WebGL (browser) and server side best viewing
  • For Mapnik devs: #1113 - Support hstore - allow one value to store all values from hstore - e.g. all available languages storage.

Documentation sprint

What are you planning to work on? Share here!


We're planning a series of OpenStreetMap tools oriented workshops. Put your name and workshop description here if you're interested to hold one!

Example workshop

Workshop Lead Name

Description of the example workshop.

New York City surveys

Let's get some fresh air and survey the city. This is a great way of exploring New York. Get your name on here if you're interested in participating!

TreesCount! A hands on OSM / citizen science count of NYC street trees.
Jackie Lu NYC Parks; Noel Hidalgo, BetaNYC; Nghiem Do & Dustin Godevais, Goldman Sachs

We are mapping every street tree in NYC! This is an outdoor, interactive citizen science mapping event. TreesCount! 2015 is NYC Parks' campaign to spark and sustain public engagement with New York City's urban forest through participatory mapping events, in partnership with local neighborhood and civic organizations across the five boroughs.

For the day, we are looking for up to 30 people to work with six NYC Parks staff to map trees in the West Village near NYU.

In the morning: come learn how thousands of volunteers will be mapping NYC street trees this summer and fall using TreeKIT (, a mapping method that combines simple site surveying tools with geospatial technology to derive the location of street trees with a high level of precision. Meet first at NYU Hack Day venue - we will go together outside as a group at approx ~9:30 am for training.
Spend the afternoon in the West Village working in teams documenting NYC’s street trees and creating open data. All equipment will be provided by NYC Parks. If you know how to contribute data to OSM - collect data to add to OSM!

Get ready to be a voluntreer!

  • Register for an account.
  • Watch this video to get an overview of how you’ll be mapping street trees.
  • NOTE - Be prepared to be outside for the day. Wear comfortable shoes. Prepared for the weather! Mapping is rain or shine.
  • Remember to bring your username and password.

At the conclusion of the TreesCount! this fall, NYC Parks Department will work with the OSM community to get this data into OpenStreetMap.

Catching up the map in New Jersey
UPDATE: Didn't hear much interest in this, so will be supporting the other mapping parties today. Everybody go map New Jersey some other time!  :-)

Missing maps mapping party

Details coming, watch @TheMissingMaps

Contact: Dale Kunce

Maptime summit


Details coming, watch @MaptimeHQ and

Contacts: Lyzi Diamond Beth Schechter Alan McConchie

OpenHistoricalMap Hack Day

Details coming, watch @OpenHistMap

Contact: Jeff Meyer

USGS Fracking and Minerals Visualization Challenges

Visualizing the Hydraulic Fracturing Lifecycle Develop interactive geospatial visualizations and map stories about the water and chemicals used in hydraulic fracturing. Integrate the USGS Produced Waters Geochemical Database with other datasets related to hydraulic fracturing, like FracFocus, to visualize and explain the lifecycle of hydraulic fracturing water and chemicals.

Visualizing the Lifecycle of Critical Minerals Develop interactive geospatial visualizations and map stories about the lifecycle of critical minerals. Integrate USGS mineral data with other datasets to uncover any economic, environmental, geopolitical, or public health consequences from developing, using, and disposing critical minerals.

See slides for examples: Download USGS EM-EH Data Viz PPT slides

Contact: Sophia B Liu,, @sophiabliu

Closing Party

6:30pm after Hack day. Let the team know you are planning on coming by registering at meetup. More details are on the registration page.