Download as PDF, PPTX
NYGeoCon2023.pdf
- 1. OpenHistoricalMap: Mapping History inNew York Richard Welty
- 2. Background • OpenHistoricalMap isan OpenStreetMap side project • more than 10 years old • Uses same Data Schema and APIs as OpenStreetMap • Has its own time-sensitive rendering engine
- 3. Background • Currently organizedas a Charter Project of OpenStreetMap US • Fundraising through OSM US (a 501(c)3) • Open Data • Current License philosophy is mixed • We encourage uploads with CC0 (public domain equivalent) • ODbL for overall database is probably inevitable
- 4. Background • Still alot of experimentation going on • How to represent change in the OSM schema • How to represent imprecision and incomplete knowledge
- 5. Lower Manhattan • Wellknown that there is a lot of fi ll • But how much fi ll? • Project: map evolving coastline
- 6.
- 7.
- 8. Time • We wouldlike to think we can document speci fi c dates and times • But we often can’t • Our data is frequently point-in-time • That is, a map or aerial image shows when something exists (or doesn’t exist) • Old documents may be missing
- 9. Time • OpenStreetMap isnot very concerned with time • pretty relentlessly about now • has a start_date tag but not a lot else
- 10. Time • OpenHistoricalMap isall about time • Provision for both start and end dates for entities • OHM is adapting Extended Date Time Format • EDTF is a standard derived from ISO 8601 • It can describe imprecision and uncertainty
- 11. Life Cycle • LifeCycle goes hand in hand with time • Highways and Roads • change route • are renamed • change in importance
- 12. Life Cycle • Buildings •change usage • are recon fi gured • are renamed
- 13. Semantic Network • OpenStreetMapuses relations for grouping • OpenHistoricalMap leans very heavily into relations • representing entities across life cycle • abstract meta data from geometry • facilitate cross linking to the wikimedia complex (wikipedia, wikidata, etc.)
- 14. Harmony Mill • TextileMill in Cohoes NY, built during the Industrial Revolution • Repurposed more than once during its existence • https://www.openhistoricalmap.org/ #map=17/42.78093/-73.70414&layers=O&da te=1930-12-17&daterange=1923-01-01,202 3-12-31
- 15. Boutique Mapping vs Mappingat Scale • Most mappers are engaged in small scale, focused projects • OHM is open to well considered, well vetted bulk imports • but data quality is critical • OHM will be sparse without imports
- 16. Potential Imports • HistoricalBoundaries • from European Settlement • Native peoples • Sanborn Fire Insurance Maps • Historical coastlines and water features • Sourcing and Licensing?
- 17.
- 18.
- 19.
- 20.
- 21.
- 22. Ghost Tracks • HistoricMotor Racing venues, now gone • New York has many, many Ghost Tracks • Vanderbilt Cup Races • early Watkins Glen • Bridgehampton • huge numbers of small dirt oval tracks
- 23. Vanderbilt Cup Races •Originated on Long Island in 1904 • Initially used public roads (1904-1906) • Safety when racing on public roads has “issues” • http://www.na-motorsports.com/test/VC.html
- 24. Long Island Motor Parkway •William K. Vanderbilt Jr’s half a solution to the public road problem with racing • Important step in the evolution of highways • All concrete, grade separated toll road • Parts are extant today • 1906-7 Vanderbilt Cup races used it for one leg of the race
- 25.
- 26.
- 27. Watkins Glen • 1948:Automotive road racing returns to the US after WWII • Lessons about racing safety on public roads evidently forgotten • After the 1952 accident killed and injured spectators there would be new courses with improved safety • www.na-motorsports.com/test/Watkins.html
- 28.
- 29.
- 30.
- 31.
- 32.
- 33.
- 34.
- 35.
- 36.
- 37. NYS Canal System •How the Barge Canal changed everything • https://www.openhistoricalmap.org/ #map=14/42.7996/-73.6917&layers=O&dat e=1977-11-10&daterange=1830-01-01,20 23-12-31
- 38. Historic Minority Communities • Complexhistory • I’ll highlight 2 in New York State • Seneca Village (Manhattan) • Rapp Road (Albany)
- 39. Seneca Village • Earlymid 1800s in Manhattan • Located near the Reservoir and Great Lawn today • majority Black, with a lot of Irish • escaping from 5 points neighborhood • Taken as part of the e ff ort to build Central Park • https://en.wikipedia.org/wiki/Seneca_Village
- 40.
- 41. Rapp Road • Settledin Albany during the 1920s • A community of Blacks moved north from rural Mississippi, following their Pastor • Lived in Albany's South End, but eventually moved west to the Albany Pine Bush • https://en.wikipedia.org/wiki/ Rapp_Road_Community_Historic_District
- 42.
- 43.
- 44. Contact • These slides •https://www.slideshare.net/nfgusedautoparts/ • nfgusedautopartsrwelty@averillpark.net or nfgusedautoparts@gmail.com • in the OpenStreetMap US Slack channel • https://openstreetmap.us/get-involved/slack • #openhistoricalmap