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opendata.ndw.nu/

NDW open data (Netherlands)

Freeauth: noneCC0-1.0#transport-shipping#netherlands#road-traffic#datex-ii#files#open-data✓ verified Nov 11, 2026

NDW open data (Netherlands)

The National Road Traffic Data Portal (opendata.ndw.nu) publishes real-time and historical Dutch road traffic data (speeds, flows, travel times, incidents, roadworks) as DATEX II XML files with no key. The terms page says (Signal Lab translation in brackets): "Tenzij bij een specifieke dataset, API of ander dataproduct uitdrukkelijk anders is vermeld, wordt de door NDW als open data beschikbaar gestelde informatie aangeboden onder de Creative Commons Zero (CC0 1.0) licentie ." [Unless expressly stated otherwise for a specific dataset, API or other data product, information NDW makes available as open data is offered under the Creative Commons Zero (CC0 1.0) licence.]

Required Attribution:

Not required: "Bronvermelding is niet verplicht, maar wordt door NDW gewaardeerd." [Attribution is not required, but is appreciated by NDW.]

Coverage

Real-time and historical Dutch road traffic data (speeds, flows, travel times, incidents, roadworks), confirmed live today via the portal listing real-time files (actueel_beeld.xml.gz and DATEX II measurement/travel-time files) with timestamps. The portal separately notes a DATEX II v2.3-to-v3 profile transition. History start and update frequency: Not stated.

Verdict

Real-time and historical Dutch road traffic data (speeds, flows, travel times, incidents, roadworks) as DATEX II XML files from the National Road Traffic Data Portal. Licensed CC0-1.0, unless a dataset states otherwise (Signal Lab translation in brackets): "Tenzij bij een specifieke dataset, API of ander dataproduct uitdrukkelijk anders is vermeld, wordt de door NDW als open data beschikbaar gestelde informatie aangeboden onder de Creative Commons Zero (CC0 1.0) licentie ." [Unless expressly stated otherwise for a specific dataset, API or other data product, information NDW makes available as open data is offered under the Creative Commons Zero (CC0 1.0) licence.] Attribution is optional: "Bronvermelding is niet verplicht, maar wordt door NDW gewaardeerd." [Attribution is not required, but is appreciated by NDW.] Rate limits: Not stated. Signal Lab links only.

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