- Send 20 points per request, not 50: above ~20 Kartverket answers the
extra points from contour lines (hoydekurver) or not at all. At 20,
nearly every camera resolves from dtm1, so the null-retry pass is gone.
Eight requests in flight keep a cold lookup ~6 s.
- Cache misses: positions with no height are not asked again for 6 h.
- Transport failures: the first 429, 5xx or network error stops the
lookup with no retries, and no lookup starts until the backoff ends
(Retry-After when sent, else 10 min; bounded to 1 min-1 h).
- Budget the 12 s wait from the start of the loader, catalog fetch
included.
- Record answers only for the points each request asked about.
- Send the CCTV User-Agent; link CC BY 4.0 in the credit.
- Docs: bridge cameras sit at the water surface, below the deck.
- Tests: batching, 8-in-flight cap, request count on failure, the shared
deadline, Retry-After bounds, null TTL, backoff, the -20 m bound and
each water marker on its own.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Cover every Norwegian station-based city-bike system with an open GBFS
feed: Kolumbus Bysykkel (Stavanger) and Farte Bysykkel (Skien/Porsgrunn)
through Entur Mobility, and Bysykkel Lillestrøm through JCDecaux
Cyclocity.
api.entur.io and api.cyclocity.fr join the GBFS allowlist, each kept to
its GBFS path prefix since both hosts front other APIs. Entur serves its
feeds without a .json suffix, so the endpoint checks accept either form,
and requests to Entur carry the ET-Client-Name header it requires.
Attributed under NLOD (Entur) and Licence Ouverte (JCDecaux).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Add Norway's three Urban Sharing city-bike systems to the Bike Share
layer and get_bike_share. The feeds are keyless GBFS on
gbfs.urbansharing.com, which joins the proxy allowlist. The proxy now
sends the Client-Identifier header the operators ask clients to send.
Attributed under NLOD 2.0 in DATA_SOURCES.md and the data credits.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Vegvesen camera feed is 2D, so every camera shared one flat 150 m
ground prior and mountain-pass cameras could sit hundreds of metres below
the terrain where neither the point-height prior nor the ground snap
resolves. Each camera now gets its terrain height from Kartverket's
keyless point-height API (CC BY 4.0): ~840 of ~845 cameras.
- 50 points per request, six in flight; points a full batch answers null
for are retried once in batches of 10 (the API drops points from large
batches).
- Sea-floor depths (dybdekurver / Havflate) under bridges and quays
count as the water surface, 0 m.
- Heights are cached by position, so the 15-minute refresh only asks
about new or moved cameras. A catalog load waits at most 12 s; a slower
lookup keeps filling the cache for the next refresh.
- CCTV_VEGVESEN_HEIGHTS=0 turns it off; Kartverket is credited beside
Statens vegvesen in the attribution popover.
Follow-up to #929.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Trygve Hemminghytt