51 lines
2 KiB
Markdown
51 lines
2 KiB
Markdown
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# OSM POI Export → FleetNow map layer
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How we turn an OpenStreetMap extract into a toggleable **FleetNow overlay layer**
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(e.g. the 232 Shell fuel stations). Reproducible end-to-end.
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## 1. Get a Kenya extract
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Download a `.osm.pbf` (Geofabrik / BBBike), e.g. `kenya-260605.osm.pbf`.
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> **Do not commit the `.pbf`** — it's ~331 MB and is gitignored (`*.osm.pbf`).
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> It's fully reproducible from the download.
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## 2. Export the POIs
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No system tooling required — `pyosmium`'s prebuilt wheel is fetched by `uv`:
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```bash
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uv run --no-project --with osmium python scripts/export_osm_pois.py \
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kenya-260605.osm.pbf --amenity fuel --brand Shell \
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--out-geojson shell_stations.geojson --out-csv shell_stations.csv
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```
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- Gas stations are OSM **`amenity=fuel`**. Brand is the **`brand`** tag — but only
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~36% of Kenyan stations carry it (≈92% have a `name`), so when `--brand` is given
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and a feature has no `brand` tag, the script falls back to matching `name`/`operator`.
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- Omit `--brand` to export **every** station of that amenity.
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- Nodes use their own coordinate; ways/areas use their node **centroid**.
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**Reference counts** (extract `kenya-260605`, captured 2026-06-08):
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| Metric | Value |
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|---|---|
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| Total fuel stations (`amenity=fuel`) | 1,794 (1,582 nodes + 212 areas) |
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| With a `brand` tag | 659 (36%) · with a `name` | 1,652 (92%) |
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| **Shell** | **232** (209 `brand=Shell` + 23 by name) |
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| Other top brands | Total 154 · Rubis 147 · TotalEnergies 50 · Kobil 10 |
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## 3. Add it to FleetNow as a layer
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Copy the GeoJSON into the FleetNow repo's `layers/` directory and register it —
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full details in the **fleetnow** repo `README.md` → *"Map overlay layers"*:
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```bash
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cp shell_stations.geojson ../fleetnow/layers/
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# then add one entry to the OVERLAYS array in fleetnow/index.html, commit + push.
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```
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FleetNow keeps its own served copy under `fleetnow/layers/`; the artifact here
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(`shell_stations.geojson` / `.csv`) is the export of record. Re-running step 2 on a
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newer extract and re-copying refreshes the layer.
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