2012 gisco track, volunteer geographic information at the usgs - the national map corps, greg...
TRANSCRIPT
U.S. Department of the Interior
U.S. Geological Survey
The National Map Corps
Background/Summary/Proposal
2010-2013
Presenters: Greg Matthews
With credit to the VGI Project Team: Greg Matthews, Eric Wolf,
Barbara Poore, Erin Korris, Jennifer Walter
Outline
Background/FY10-FY11
USGS VGI Workshop in 2010
OSMCP Phase 1
OSMCP Phase 2
Status for FY12
FY13 Proposal
History of VGI at the USGS
Phase 1
Software
State partner
Roads
Guidelines
Phase 1: Results
Open File Report at
http://pubs.usgs.gov/of/2011/1136/
Successful deployment of OSM editing
environment (Potlach) customized with USGS
specifications
Multiple editors working to provide updates
in a distributed environment
Successfully edited roads data for KS
Lessons learned implemented in Phase 2
Structures
Volunteers
Quality/Cost
The National Map
OpenStreetMap
Phase 2
Phase 2: Software
OSM infrastructure
Potlatch 2 interface modified
User centered design
principles
Phase 2: Outreach and Communication
Positional Accuracy Improvement
Summary
Mean Absolute Error
Meets National Map
Accuracy Standards
(error <12.129m)
GNIS (GAZ) 42.79m 49.57%
Volunteer Edit &
Collect (Edit) 20.10m 84.22%
Volunteer Peer
Review (QC1) 13.67m 92.23%
Phase 3
Link to site
MODIFIED[4]
DELETED[5]
ADDED[6]
TOTAL NUMBER
OF CHANGES[7]
TOTAL
VOLUNTEER
EDIT
CONTRIBUTIONS[10]
4,481 804 44 326 1,174 2,940 135 1,309
VOLUNTEER
ADOPT-A-QUAD
CONTRIBUTIONS
-- 115 0 7 122 -- 10 132
TOTAL
VOLUNTEER
CONTRIBUTIONS
4,481 919 44 333 1,296 2,940 145 1,441
[2] FINAL = Total number of structures in "Revised" database, AFTER editing.
[7] TOTAL NUMBER CHANGES = The total number of changes made to the initial dataset by volunteers.
[8] VERIFIED POINTS = The total number of initial GAZ points verified by volunteers as correct and not requiring changes to position and/or attributes.
[9] TOTAL VOLUNTEER CONTRIBUTIONS = TOTAL NUMBER OF CHANGES + NUMBER OF VERIFIED STRUCTURES.
[10] All volunteer contributions to date: 20 structure features edited from 3/29/12 to 7/19/12 AND 7 and/or 9 structure features edited from 7/20/12 to present.
SUMMARY OF CHANGES IN COLORADO
March 29, 2012 through August 30, 2012
PROJECT
STAGE
FEATURES IN
INITIAL
DATABASE[1]
NUMBER OF STRUCTURE POINTS WITH
ATTRIBUTE AND/OR GEOMETRY CHANGES[3] FEATURES IN
FINAL
DATABASE[2]
NUMBER OF
VERIFIED
STRUCTURES[8]
TOTAL
VOLUNTEER
CONTRIBUTIONS[9]
[1] INITIAL = Total number of structures in "Original" database, BEFORE editing.
[3] CHANGED = Changes to attributes, position, or both. (Note, if changes were made to both the position AND attributes of a structure, then it is only counted once in the
table).
[4] MODIFIED = Total number of structures in the "Original" database that were changed during editing (meaning the number of structure points that were moved, the number
of structures with changes to attribute values (edits, additions), or the number of structure points with changes to both the position and attributes of a structure feature).
[5] DELETED = Total number of structures in the "Original" database that were deleted during editing (structures that were not valid).
[6] ADDED = Total number of new structures identified and added to the database during editing (the number of "errors of omission" that were corrected during editing).
1636
174
349370
418
477
538573
740773
804
1 2 11 16 16 16 16 17 17 17 174440 52
199237 245 261 261 264 273
301 304326
729
158 160 165 182 192 198
140 135 135
0
37
13271119
583
760791
860
936
1011
1061
11981229
1441
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
4/23/2012 5/13/2012 6/2/2012 6/22/2012 7/12/2012 8/1/2012 8/21/2012 9/10/2012
Nu
mb
er
of
Po
ints
Date
MODIFIED
DELETED
ADDED
VERIFIED POINTS
AAQ
TOTAL VOLUNTEER CONTRIBUTIONS
