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

sluizen

README.md

Name: README.md
Size: 1.97 KB
Content Type: text/markdown
Last Modified: 7 May 2026
Source URL: https://data.source.coop/cholmes/portolan-nl/rijkswaterstaat/sluizen/README.md
Cloud URI: s3://us-west-2.opendata.source.coop/cholmes/portolan-nl/rijkswaterstaat/sluizen/README.md

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Name: README.md
Size: 1.97 KB
Content Type: text/markdown
Last Modified: 7 May 2026
Source URL: https://data.source.coop/cholmes/portolan-nl/rijkswaterstaat/sluizen/README.md
Cloud URI: s3://us-west-2.opendata.source.coop/cholmes/portolan-nl/rijkswaterstaat/sluizen/README.md

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Locations of 92 navigation locks (sluizen) on the Dutch recreational waterway network (BRTN), including name, address, operator, number of chambers, and VHF radio channels.

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

Spatial Coverage

Bounding Box: [3.684800, 50.867300, 6.939900, 53.319900]

Schema

Column	Type	Description
OBJECTID	int64	Feature ID
NAAM	string	Lock name
PLAATSNAAM	string	Town/city
NR_KOLKEN	int32	Number of lock chambers (1-4)
MARIFOONKA	string	VHF radio channel
BHR_NAAM	string	Operator name
BHR_TYPE	string	Operator type
ADRES	string	Street address
POSTCODE	string	Postal code
TEL_NR	string	Phone number
VRT_CODE	string	Waterway route code
VRTNAAM	string	Waterway route name

Files

File	Format	Description
sluizen.parquet	GeoParquet	92 lock point locations
sluizen.pmtiles	PMTiles	Vector tiles for web visualization

Quick Start

STAC Metadata

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

Source

ArcGIS FeatureServer — NWP Basisrecreatietoervaartnetwerk

Attribution

Rijkswaterstaat

License

Proprietary

Contact

Chris Holmes cholmes@9eo.org

Generated by Portolan from STAC metadata

Locations of 92 navigation locks (sluizen) on the Dutch recreational waterway network (BRTN), including name, address, operator, number of chambers, and VHF radio channels.

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

Spatial Coverage

Bounding Box: [3.684800, 50.867300, 6.939900, 53.319900]

Schema

Column	Type	Description
OBJECTID	int64	Feature ID
NAAM	string	Lock name
PLAATSNAAM	string	Town/city
NR_KOLKEN	int32	Number of lock chambers (1-4)
MARIFOONKA	string	VHF radio channel
BHR_NAAM	string	Operator name
BHR_TYPE	string	Operator type
ADRES	string	Street address
POSTCODE	string	Postal code
TEL_NR	string	Phone number
VRT_CODE	string	Waterway route code
VRTNAAM	string	Waterway route name

Files

File	Format	Description
sluizen.parquet	GeoParquet	92 lock point locations
sluizen.pmtiles	PMTiles	Vector tiles for web visualization

Quick Start

STAC Metadata

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

Source

ArcGIS FeatureServer — NWP Basisrecreatietoervaartnetwerk

Attribution

Rijkswaterstaat

License

Proprietary

Contact

Chris Holmes cholmes@9eo.org

Generated by Portolan from STAC metadata

Dutch Portolan Demo

Dutch Portolan Demo

Navigation Locks

Spatial Coverage

Schema

Files

Quick Start

STAC Metadata

Source

Attribution

License

Contact

Navigation Locks

Spatial Coverage

Schema

Files

Quick Start

STAC Metadata

Source

Attribution

License

Contact