Guides

What each sitedia plate computes for a site in the Netherlands, from which data, and where its limits are.

Each guide explains how a plate is calculated and what it does not show. If a plate does not look as expected, read the Limitations section of that plate's guide. The Netherlands edition covers the European Netherlands (not the Caribbean Netherlands) and is available in English and Dutch.

Introduction

• How to draw a site analysis diagram

  Order and principles for site analysis plates, the manual process and the part sitedia automates

• The 28 plates

  What each plate shows for a Dutch site, which register it comes from and what it is used for

• Site overview and section

  Cadastral parcels and registered area, legacy zoning figures (reference only), the area within the radius in numbers, and a 1:1 section

Plates

• Sun hours map

  Shadows every 10 minutes summed over the day, the values on the sheet, and why it is not a sunlight assessment

• Slope diagram

  Flat-country bands at 0.5, 1, 2, 3 and 5°, 25 m smoothing, and the AHN4 ground model

• Plot size diagram

  Kadaster cadastral parcels coloured by area in 5 bands

• Trees

  Trees detected from the 2025 near-infrared aerial photo and AHN4 heights, and how they compare with municipal tree registers

Analysis

• Sun path and shadow diagrams

  The sun path, the 3D shadow model, date and time (CET without summer time)

• Wind rose and urban airflow

  Observed frequency in 16 directions from the nearest TMYx weather file, and airflow between buildings (LBM)

• Thermal comfort (UTCI) map

  Weather, wind, shade and ground cover combined into a felt temperature, and the known biases

Export

• Finishing the SVG

  Layer structure, recolouring, scale in metres, PNG resolution and DXF

• 3D export: GLB, 3DM, SKP

  Formats, colour modes in the file, 3DBAG heights

Dutch data

• Buildings from the BAG and 3DBAGNL

  Outline, year built, use and status from the BAG; heights from 3DBAG; what is left out and why heights can be missing

• Zoning plan and omgevingsplan on the platesNL

  Legacy bestemmingsplannen, the new part of the omgevingsplan, the DSO check per site, and why the plate is for reference only

• AHN4, NAP and contoursNL

  The AHN4 ground model, contours every 0.5 m relative to NAP, and how relief is measured on flat ground

Reference

• Data sources

  Data holder, licence and credit of each dataset used in the Netherlands edition

• Frequently asked questions

  Coverage, search, missing buildings and heights, zoning, compute times, files, passes, licensing and attribution

Dutch version: Handleidingen.

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