Dutch Portolan Demo

Name: Dutch Portolan Demo
Creator: Chris Holmes

A collection of datasets from various Dutch institutions to demonstrate a Spatial Data Infrastructure built on Portolan.

Product Details

Visibility: Public
Owner: Chris Holmes
Created: 6 May 2026
Last Updated: 6 May 2026

Product Contents

root

rijkswaterstaat

zero_emissiezones

README.md

Name: README.md
Size: 1.89 KB
Content Type: text/markdown
Last Modified: 7 May 2026
Source URL: https://data.source.coop/cholmes/portolan-nl/rijkswaterstaat/zero_emissiezones/README.md
Cloud URI: s3://us-west-2.opendata.source.coop/cholmes/portolan-nl/rijkswaterstaat/zero_emissiezones/README.md

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Name: README.md
Size: 1.89 KB
Content Type: text/markdown
Last Modified: 7 May 2026
Source URL: https://data.source.coop/cholmes/portolan-nl/rijkswaterstaat/zero_emissiezones/README.md
Cloud URI: s3://us-west-2.opendata.source.coop/cholmes/portolan-nl/rijkswaterstaat/zero_emissiezones/README.md

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Zero Emission Zones

Zero emission zones (zero-emissiezones) in Dutch cities where only emission-free vehicles are allowed. 42 MultiPolygon features covering Low Emission Zones (LEZ) and Zero Emission Stadslogistiek (ZES) areas.

AI/Agent users: See llms.txt for field descriptions, query examples, and usage tips.

Spatial Coverage

Bounding Box: [3.961258, 50.841969, 6.900160, 53.222107]

Schema

Column	Type	Description
OBJECTID	int64	Feature ID
Naam	string	Zone name (e.g. "LEZ 's-Hertogenbosch")
Startdatum	timestamp[ms]	Start date of the zone
Einddatum	timestamp[ms]	End date of the zone
Soort	string	Zone type: LEZ or ZES
Shape__Area	double	Area in m²
Shape__Length	double	Perimeter in m
geometry	binary	MultiPolygon in EPSG:28992 (RD New), WKB encoded

Files

File	Format	Description
zero_emissiezones.parquet	GeoParquet	42 emission zone polygons
zero_emissiezones.pmtiles	PMTiles	Vector tiles for web visualization

Quick Start

STAC Metadata

root: ../../catalog.json
parent: ../catalog.json

Source

ArcGIS FeatureServer

Attribution

Rijkswaterstaat

License

Proprietary

Contact

Chris Holmes cholmes@9eo.org

Generated by Portolan from STAC metadata