BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//pretalx//talks.staging.osgeo.org//foss4g-2022//speaker//VTKQEV
BEGIN:VTIMEZONE
TZID:CET
BEGIN:STANDARD
DTSTART:20001029T040000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20000326T030000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:pretalx-foss4g-2022-QNBUEC@talks.staging.osgeo.org
DTSTART;TZID=CET:20220826T152000
DTEND;TZID=CET:20220826T152500
DESCRIPTION:Traffic Safety Application:\n\nIn the data preprocessing phase\
 , data quality assessment and dirty data were determined on the accident d
 ata by using desktop GIS applications such as QGIS\,SAGAGIS\,JOSM\,GeoDa. 
 OpenSource GIS applications and programming languages such as R language a
 nd python were used in data cleaning\, exploratory analysis and data proce
 ssing. Statistics for accident data have been extracted. OpenSource map se
 rver such as GeoServer is used for sharing\, editing and organizing accide
 nt maps and base maps produced in GIS applications.\nPython software langu
 age was used in the server side of the project. For geospatial data analys
 is\, accident points were verified by using geopandas and shapely librarie
 s. PostgreSQL database was used to store geo-based accident data and the P
 ostGIS extension was used. PostGIS adds spatial capabilities to PostgreSQL
  so it can store\, query\, and manipulate spatial data. On the server side
  scripting\, GeoAlchemy(an extension of SQLAlchemy) is used for working wi
 th spatial databases and geospatial queries.\nFor the client side\, Turf w
 as used for any spatial operations. It is a geospatial engine\, and it inc
 ludes spatial operations and helper functions. MapboxGL-WebGL-powered libr
 ary is used for interactive vector maps on the web application. To render 
 more than 100k of accidents with high performance\, WebGL powered geospati
 al visualization framework DeckGL was used. NebulaGL provides geospatial d
 rawing and editing tools for lines\, polygons etc. It was added for select
 ing analysis regions from the map. Osm-Nominatim is a geocoding library. I
 t allows users to find accident locations from an address.\n\nOpenSource G
 IS Tools:\n\n●	GIS software for data visualization\, processing and anal
 ysis:\n\nQGIS\, GRASSGIS\, JOSM\, SAGAGIS\, OrbisGIS\n\n●	GIS Servers: G
 eoServer\, MapServer\, Mapnik\,	MapGuide\, QGIS Server\n\n●	Backend(Pyth
 on) :Geopandas\, Shapely\, Postgis\n\n●	Client(Javascript) :Turf\, DeckG
 L\, osm-nominatim\n\nAsset Management Application:\n\nWith the “Image-Ba
 sed Information Management System” Application\, it is work to make an i
 nformation management system and Digital 3D road inventory map for the 91\
 ,126km road network under the responsibility of the General Directorate of
  Highways. With this project\, it is possible ensured that images (approxi
 mately 21 million) of the highway are taken and the collection\, digitizat
 ion\, storage and presentation of the road information of the objects base
  and the realization of asset management\, maintenance services\, planning
 \, project design\, measurement and evaluation processes determined by the
  administration through the image.\n\nOpenSource GIS Tools:\n\n●	GIS sof
 tware for data visualization\, processing and analysis: QGIS\n\n●	GIS Se
 rvers: GeoServer\n\n●	Backend :Postgis\, Turf\, @swimlane/ngx-charts\n\n
 ●	Client :OpenLayers\n\nResults:\n\n• Data in semi HD map quality was 
 produced.\n\n• The entire road network can be monitored and analyzed wit
 h panoramic images.\n\n• The vertical and horizontal profile of the enti
 re highways network has been created.\n\n• 2.995.845 point inventories a
 nd 991.820km line inventories in 42  inventory were produced.\n\n• Detec
 tion of inventory deficiencies in the field and maintenance processes can 
 be followed.\n\n• Road inventory data needed can be shared with other pu
 blic institutions.
DTSTAMP:20260403T192116Z
LOCATION:Room 9
SUMMARY:The best practices of Open Source GIS base applications on Türkiye
  General Directorate of Hihgways - ozgenc uslu\, sefa bugra ozen
URL:https://talks.staging.osgeo.org/foss4g-2022/talk/QNBUEC/
END:VEVENT
END:VCALENDAR