Crowdsourcing The National Map with TNMCorps
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TNMCorps is a crowdsourcing program that allows volunteers to help update structures data for The National Map by verifying, updating, adding, or deleting points through an online editing application. Volunteers can edit structure points across the US, with a focus on ensuring data quality through reference materials, tiered editing levels, automated and manual quality checks. Recent improvements include updated reference guides, new engagement methods like challenge maps, and a pilot study to collect courthouse data from scratch.
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Crowdsourcing The National Map with TNMCorps
- 1. + Crowdsourcing The National Map with TNMCorps GIS In The Rockies 2018 September 20, 2018 Samantha Doering & Erin Korris
- 2. + 2 + 2 Crowdsourcing The National Map ◼ Overview of TNMCorps ◼ How to Participate: The Editing Process ◼ Ensuring Quality ◼ What’s New: Changes & Improvements ◼ Questions? Agenda
- 3. + 3 + 3The National Map Corps: Overview Using an online web mapping application, volunteers update structures in support of The National Map & US Topo Maps Data collected: downloadable, freely available, and in the public domain. ◼ Participants - General Public ◼ Easy registration - username and email address ◼ All reference materials online (i.e. user guide, Q&A) ◼ Editing Process - Verify, update, add or delete points
- 4. + 4 + 4 The Editing Process 1. Research authoritative source(s) ◼ e.g., school website 2. Check existing points (red border) ◼ Check Location* ◼ Check Attributes ◼ Name * ◼ Address, City, State, Zip ◼ Formatting ◼ (e.g., abbreviations, make Proper Case, add street designator) 3. Add missing points 4. Delete obsolete points
- 5. + 5 + 5 CURRENT SCOPE: ◼ All 50 states, PR, and USVI ◼ Structure types ◼ School ◼ College/University ◼ Fire Station/EMS ◼ Law Enforcement ◼ Prison/Correctional Facility ◼ Hospital/Medical Center ◼ Ambulance Service ◼ Cemetery ◼ Post Office ◼ Courthouses* The Editing Process
- 6. + 6 + 6 Recognition: ◼ “Virtual badges” based on the number of unique points edited ◼ Motivational “thank you” ◼ Social media, newsletters, websites The Editing Process
- 7. + 7 + 7 Ensuring Quality (QA) ■ User guides and online materials ■ Describes editing process, what to collect/not to collect, attribute formatting ■ Q&A and FAQs
- 8. + 8 + 8 Ensuring Quality (QA) ■ User guides and online materials ■ Describes editing process, what to collect/not to collect, attribute formatting ■ Q&A and FAQs ■ Tiered-editing approach ■ Standard Editors ■ Peer Reviewers (+25 & quick QA review) ■ Advanced Editors (+200 & QA review) Admin Approved Advanced Edited Peer Reviewed Standard Edited Unedited
- 9. + 9 + 9 Ensuring Quality (QC) ■ Automated Checks ■ Formatting errors ■ Spelling ■ Vandalism ■ Instant Feedback on errors ■ Review Queue ■ Any points that fail automated checks ■ All deletions ■ Daily quality monitoring ■ New editors ■ Large # of edits ■ Deletions ■ Vandalism ■ Volunteer emails Constructive feedback via email
- 10. + 10 + 10 TNMCorps: What’s New? Many updates and improvements since 2017: ■ Updated Reference Materials ■ Additional Methods of Engagement ■ Pilot Study: Courthouses
- 11. + 11 + 11 TNMCorps: What’s New? Reference Materials Structures List Data Dictionary Name & Address Formatting Consistent Nomenclature Authoritative Sources Acceptable and Unacceptable Sources ■ Always refining to reflect trends
- 12. + 12 + 12 TNMCorps: What’s New? ■ Existing Methods: ■ Newsletters ■ Individual QC emails ■ Q&A ■ Challenges: ■ Resources in multiple locations ■ Where to get started? Methods of Engagement
- 13. + 13 + 13 TNMCorps: What’s New? Methods of Engagement Interactive Challenge Maps “Where” to start - geographically Live Data – static vs. dynamic map USGS Topo Production schedule Introductory / “Welcome” Emails Sets welcoming tone “Where” to start – reference materials ■ Additional Methods
- 14. + 14 + 14 TNMCorps: What’s New? Methods of Engagement Structure Finder “Where” to start - geographically Live Data – static vs. dynamic map Introductory / “Welcome” Emails Sets welcoming tone “Where” to start – reference materials ■ Additional Methods
- 15. + 15 + 15 TNMCorps: What’s New? Many updates and improvements since 2017: ■ Updated Reference Materials ■ Additional Methods of Engagement ■ Pilot Study: Courthouses
- 16. + 16 + 16 TNMCorps: What’s New? ■ Purpose ■ Test volunteers’ ability to collect a dataset from scratch ■ Courthouses ■ County Courthouses ■ State Supreme Courthouses Pilot Study – Courthouses
- 17. + 17 + 17 TNMCorps: What’s New? ■ Purpose ■ Courthouses ■ Updated Resources ■ Structures List ■ User Guide ■ Data Collection ■ Launched October 2017 ■ Completed ~June 2018 Pilot Study – Courthouses
- 18. + 18 + 18 TNMCorps: What’s New? Pilot Study – Courthouses Quality findings will be published in a technical article ■ Purpose ■ Courthouses ■ Updated Resources ■ Data Collection ■ Can still add points ■ Data Analysis ■ ~50% complete ■ ~95% pass rates
- 19. + 19 + 19 Results ◼ 363,000+ points edited ◼ Over 1,300 active volunteers (Aug ‘16) ◼ Daily editing average: 250+ edits ◼ ~35 FTE (full-time employees) over project lifetime ◼ Proven data quality ◼ (2 previous studies)
- 20. + 20 + 20 Next Steps ■ New Structure Features ■ Collaborations ■ NGA/HIFLD ■ NPS/USFS ■ Other TNM data layers ■ Mobile app
- 21. + 21 + 21 Do some editing! ◼ Easy to sign up and get started ◼ All materials (e.g. user guide) online ◼ No commitment ◼ It’s fun! ☺ edits.nationalmap.gov/tnmcorps
- 22. + 22 + 22 Questions? Editor: edits.nationalmap.gov/tnmcorps Twitter: @USGSTNM #TNMCorps nationalmapcorps@usgs.gov ekorris@usgs.gov | sdoering@usgs.gov