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UID:pretalx-foss4g-2022-EAX3P7@talks.staging.osgeo.org
DTSTART;TZID=CET:20220825T153500
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DESCRIPTION:For sustainable public transport (PT) operations and planning\,
  the most important part of the decision-making cycle is the accurate and 
 up-to-date collection and sharing of static public transport data. One of 
 the biggest problems experienced is that the data for comprehensive analyz
 es are not accurate and powerful\, and data formats change according to PT
  agencies. To solve these problems\, PT data formats and visualization met
 hods have been investigated.\n\nGTFS (General Transit Feed Specification) 
 is the most commonly used format for specifying PT schedules\,line\,stop a
 nd route. In other words\, GTFS is a data specification that allows PT age
 ncies to publish their transit data in a format that can be consumed by a 
 wide variety of software applications. Today\, the GTFS data format is use
 d by thousands of PT providers.\n\nOur company has developed an open-sourc
 e GIS-based GTFS editor using its knowledge in data analysis\, big data\, 
 and data visualization in the field of PT. Within the scope of this study\
 , firstly\, open PT data (line\, stop\, schedule\, etc.) were obtained fro
 m different municipalities and visualized using open source GIS applicatio
 ns such as QGIS\, SAGA GIS\, JOSM\, GeoDa\, and data quality evaluation wa
 s made. State of art in the field of ITS has been researched and open sour
 ce GTFS editors have been studied.\n\nOpen source map servers such as GeoS
 erver were used for sharing\, editing and organizing stop & line maps prod
 uced in GIS applications. For geospatial data analysis\, stop points were 
 verified by using geopandas and shapely libraries. PostgreSQL database was
  used to store geo-based stop & line data and the PostGIS extension was us
 ed. PostGIS adds spatial capabilities to PostgreSQL so it can store\, quer
 y\, and manipulate spatial data. On the server side scripting\, GeoAlchemy
 (an extension of SQLAlchemy) was used for working with spatial databases a
 nd geospatial queries. Turf was used for any spatial operations. It is a g
 eospatial engine\, and it includes spatial operations and helper functions
 . - MapboxGL: WebGL-powered library was used for interactive vector maps o
 n the web application. To render more than 1k of stops & lines with high p
 erformance\, WebGL powered geospatial visualization framework DeckGL was u
 sed. NebulaGL provides geospatial drawing and editing tools for lines. It 
 was added for creating & editing routes from the map. Osm-Nominatim is a g
 eocoding library. It allows users to find a stop address from a location.\
 n\nAs a result of the studies\, the open source GTFS editor was developed\
 , which will create a geographical base for PT planning and operational me
 thods. The developed GIS-based editor provides fast and more effective PT 
 management by enabling the visualization\, creation and management of line
 s and stops of PT agencies with user-friendly interfaces.
DTSTAMP:20260404T161232Z
LOCATION:General online
SUMMARY:Public Transportation GTFS Editor - Elif Karagümüş\, Egemen Okte
 n\, HALDUN YILDIZ
URL:https://talks.staging.osgeo.org/foss4g-2022/talk/EAX3P7/
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