# Country map data

These simplified maps describe countries and city centres, not roads, boarding points,
service areas, or guaranteed routes. Only cities returned by the application's active
locations API are displayed as destinations. Unknown city names remain in the visible
list and are not assigned an invented coordinate.

## National outlines

Source: [geoBoundaries](https://www.geoboundaries.org/), pinned release `9469f09`,
`releaseData/gbOpen/{ISO}/ADM0/geoBoundaries-{ISO}-ADM0_simplified.geojson`.
Downloaded 2026-09-18. Coordinates are WGS84 longitude, latitude. Each closed ring was
generalised with Douglas–Peucker tolerance 0.018 degrees, rounded to four decimal
places; degenerate rings under four vertices were omitted. A local equirectangular
projection corrects longitude at mean latitude. This is an illustrative map, not
navigation data. No administrative border was redrawn manually.

- Bulgaria (BGR), boundary `BGR-ADM0-55223397`, 2019: geoBoundaries/Wikimedia,
  public domain. [Metadata](https://www.geoboundaries.org/api/current/gbOpen/BGR/ADM0/).
- Romania (ROU), boundary `ROU-ADM0-16175383`, 2018: StatSilk/geoBoundaries,
  [CC BY 3.0](https://creativecommons.org/licenses/by/3.0/).
  [Metadata](https://www.geoboundaries.org/api/current/gbOpen/ROU/ADM0/).
- Ukraine (UKR), boundary `UKR-ADM0-60985579`, 2017: © OpenStreetMap contributors,
  Wambacher/geoBoundaries, [ODbL 1.0](https://opendatacommons.org/licenses/odbl/1-0/).
  [Metadata](https://www.geoboundaries.org/api/current/gbOpen/UKR/ADM0/).
  This national boundary includes Crimea. The map does not depict de facto control.

The derived outline database is freely available as
[country-outlines.json](./country-outlines.json). Its Ukraine portion is distributed
under ODbL 1.0 with the attribution above, including the source and modifications.
Other portions retain their listed source licences. These data licences do not
change the licence of the separate application code.

geoBoundaries attribution: Runfola, D. et al. (2020), geoBoundaries: A global database
of political administrative boundaries. PLoS ONE 15(4): e0231866.
https://doi.org/10.1371/journal.pone.0231866

## City coordinates

Source: [GeoNames](https://www.geonames.org/),
[CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), daily country extracts
at `https://download.geonames.org/export/dump/{BG,RO,UA}.zip`, read 2026-09-18.
Rounded to five decimals; aliases added for the site's supported languages.

| Country | City | GeoNames ID | Longitude | Latitude |
| --- | --- | --- | --- | --- |
| BG | Aheloy | 733727 | 27.64850 | 42.64845 |
| BG | Burgas | 732770 | 27.46886 | 42.50651 |
| BG | Nesebar | 728825 | 27.73602 | 42.65921 |
| BG | Pomorie | 728108 | 27.62986 | 42.56326 |
| BG | Sunny Beach / Slanchev Bryag | 6355005 | 27.70830 | 42.69310 |
| BG | Sveti Vlas | 725816 | 27.75867 | 42.71360 |
| BG | Varna | 726050 | 27.91024 | 43.21912 |
| RO | Brașov | 683844 | 25.60613 | 45.64861 |
| RO | Constanța | 680963 | 28.63432 | 44.18073 |
| UA | Izmail | 707308 | 28.83751 | 45.35058 |
| UA | Kyiv | 703448 | 30.52380 | 50.45466 |
| UA | Odesa | 698740 | 30.74383 | 46.48572 |

The readable destination names always come from live application data; this lookup
does not add cities or routes to the business catalogue.