# An *r5py* sample data set that covers the centre of Helsinki
This package contains the following data sets:
## `r5py.sampledata.helsinki.gtfs`
General Transit Feed Specification ([GTFS](https://developers.google.com/transit/gtfs/reference))
data representing the public transport schedules, stop locations, lines, etc.
The data was created by Helsinki Region Transport (HLS) and obtained from
[TransitFeeds.com](https://transitfeeds.com/p/helsinki-regional-transport/735).
This GTFS data set is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
## `r5py.sampledata.helsinki.osm_pbf`
A sample dataset representing OpenStreetMap data in protocolbuffer binary format (PBF),
which was obtained from [Geofabrik](https://download.geofabrik.de/europe/finland.html).
The data is licensed under the [Open Data Commons Open Database License (ODbL)](https://www.openstreetmap.org/copyright).
We used [osmium](https://osmcode.org/osmium-tool/) to crop the data to the given extent.
## `r5py.sampledata.helsinki.population_grid`
A sample dataset representing the population of Helsinki.
The data is obtained from Helsinki Region Environmental Services (HSY).
The data is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
The data is downloaded from the Helsinki Region Environmental Services’ (HSY)
*Web Feature Service (WFS)* endpoint (see the
[Helsinki Region Infoshare’s data description](https://hri.fi/data/en_GB/dataset/vaestotietoruudukko)).
We used [a script](scripts/download_population_grid.py), that we share with this package, to download
the data set and adapt it to the requirements of r5py’s documentation. Namely, we:
- reindexed the data,
- omitted some columns,
- renamed the remaining columns from Finnish to English
- reprojected the data to "EPSG:4326", and
- extracted centroids from the grid polygons (for the point data set)
Raw data
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"author": "Willem Klumpenhouwer, Marcus Sairava, Rafael Pereira, Henrikki Tenkanen",
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"description": "# An *r5py* sample data set that covers the centre of Helsinki\n\nThis package contains the following data sets:\n\n## `r5py.sampledata.helsinki.gtfs`\n\nGeneral Transit Feed Specification ([GTFS](https://developers.google.com/transit/gtfs/reference))\ndata representing the public transport schedules, stop locations, lines, etc.\nThe data was created by Helsinki Region Transport (HLS) and obtained from\n[TransitFeeds.com](https://transitfeeds.com/p/helsinki-regional-transport/735).\n\nThis GTFS data set is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).\n\n\n## `r5py.sampledata.helsinki.osm_pbf`\n\nA sample dataset representing OpenStreetMap data in protocolbuffer binary format (PBF),\nwhich was obtained from [Geofabrik](https://download.geofabrik.de/europe/finland.html).\nThe data is licensed under the [Open Data Commons Open Database License (ODbL)](https://www.openstreetmap.org/copyright).\n\nWe used [osmium](https://osmcode.org/osmium-tool/) to crop the data to the given extent.\n\n\n## `r5py.sampledata.helsinki.population_grid`\n\nA sample dataset representing the population of Helsinki.\nThe data is obtained from Helsinki Region Environmental Services (HSY).\nThe data is licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).\n\nThe data is downloaded from the Helsinki Region Environmental Services\u2019 (HSY)\n*Web Feature Service (WFS)* endpoint (see the\n[Helsinki Region Infoshare\u2019s data description](https://hri.fi/data/en_GB/dataset/vaestotietoruudukko)).\nWe used [a script](scripts/download_population_grid.py), that we share with this package, to download\nthe data set and adapt it to the requirements of r5py\u2019s documentation. Namely, we:\n\n- reindexed the data,\n- omitted some columns,\n- renamed the remaining columns from Finnish to English\n- reprojected the data to \"EPSG:4326\", and\n- extracted centroids from the grid polygons (for the point data set)\n",
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