# Cape Baily OSM dataset and derived graph source offer

© OpenStreetMap contributors. Database licence: Open Data Commons Open Database License (ODbL) 1.0. This local development delivery includes the captured source database and all modified databases used by the routing engine. These files are offered under ODbL 1.0, with the full existing terms preserved verbatim in [ODbL-1.0.html](ODbL-1.0.html). OSM copyright/attribution information is preserved in [osm-copyright.html](osm-copyright.html). No legal-clearance or navigation-safety claim is made.

## Delivered database/source offer

- [Original complete captured response](overpass-response.json): 516,149 bytes, 526 ways, 4,029 nodes. SHA-256 `18219dac1b6650873f68e53e9bd050d999e14327ff052a5d7b6633504798dc56`.
- [Original query](query.overpassql), [original acquisition manifest](manifest.json), [captured service policy](service-policy.html).
- [Walking derived database](../../assets/routing/cape-baily-walking.graph.json), [driving derived database](../../assets/routing/cape-baily-driving.graph.json), [roads/trails GeoJSON derived database](../../assets/routing/cape-baily-roads-trails.geojson). Full editable JSON/GeoJSON, no proprietary encoding or access restriction added.
- [Derived/source byte manifest](derived-manifest.json): every copied source and generated database has byte length and SHA-256. The original acquisition manifest is unchanged. This additional manifest records transformations without rewriting acquisition history.
- Original transformation/algorithm source: [routing engine](../../src/routes/routing.js) and [rebuild script](../../tests/routes/build-road-assets.mjs), governed by the project's code licensing decisions; the ODbL database offer does not purport to relicense unrelated project code.

This is an actual included local file offer, not a promise of a future source server. A later hosted/distributed product must preserve attribution, licence notices and access to the relevant source/derived databases for its recipients, with integration/release review of the applicable ODbL obligations (including derivative-database and Produced Work provisions). No hosted publication or worldwide dataset is provided here. Read the full terms for their exact conditions; this document is not a clearance opinion.

## Provenance and transformations

Original acquisition: one owner-authorised bounded development query to the endpoint identified in the original manifest. OSM base timestamp `2026-10-14T22:44:37Z`. Query rectangle: south -34.06, west 151.17, north -34.00, east 151.26. Ways intersecting the query may include nodes outside that rectangle. Their data remains in the original response and context GeoJSON, but graph segments with either endpoint outside the rectangle are excluded, not falsely connected across missing data.

The build reads the original bytes, verifies their expected hash/size, attaches explicit coverage bounds and source identity in memory, and creates deterministic profile-specific permitted directed segments between adjacent source node IDs. It applies the documented access/direction/conservative unsupported-rule policy. Nodes are not snapped together. No new roads are invented. Profile graphs retain source way IDs/tags and exclusion diagnostics. GeoJSON contains captured highway/path/ferry way geometry and tags including non-routable/private ways; map display is not an access endorsement. No style, tiles, reference artwork or reference algorithm was copied.

Rebuild locally from the repository root, with the existing E: Node runtime:

```sh
/mnt/e/Claude/tools/node/node.exe tests/routes/build-road-assets.mjs
```

No further Overpass requests were made for this delivery. Public Overpass is not an application backend. Captured dataset/graphs are intended to be served locally by later integration, with no query to a public backend from customers. The cached policy copy is evidence of the development-source context, not permission to run a customer routing service against that public endpoint.


## Expanded Cronulla / Woolooware region — 16 October 2026

The runtime now uses the additionally retained Cronulla snapshot and derived graphs. Source acquisition, full original query/response, SHA-256 manifest and derived database offer are under [cronulla](cronulla/manifest.json). Bounds: west151.10,south-34.085,east151.26,north-34.00. This includes the earlier Cape Baily region but is still regional, not worldwide. One manually initiated development query; the app does not use the public Overpass service as a runtime backend. ODbL1.0 and ©OpenStreetMap contributors apply to these databases and produced map works; existing copyright/licence files above apply.

Download [original database](cronulla/overpass-response.json), [query](cronulla/query.overpassql), [derived manifest](cronulla/derived-manifest.json), [walking graph](/assets/routing/cronulla-walking.graph.json), [driving graph](/assets/routing/cronulla-driving.graph.json). Rebuild with scripts/build-cronulla-routing.mjs. Conservative access filtering and no turn restrictions/live closure support remain; this is animation geometry, not driving directions.