Project catalog

Geospatial Analysis Platform

Sole developer · production tool used daily by a consultancy

Designed and built the in-house geospatial analysis platform for a Dutch mobility consultancy — a full-stack web application that turns transport and demographic data into planner-ready maps and figures. It ships a suite of spatial tools: modal-split visualisation, origin–destination spider diagrams, accessibility mapping, traffic viewers, cross-section profiles, and thematic map export.

• +7+ spatial-analysis tools in one platform
• +Used daily by the full consultancy team
• +FastAPI · React · PostGIS · QGIS

Geospatial MCP Server

AI agents that run spatial analysis in plain language

A Model Context Protocol server, published on PyPI, that exposes geospatial OGC processes and a project knowledge base to LLM agents. It lets an assistant answer "how accessible is this neighbourhood?" by actually running the analysis — every result is citation-grounded so claims trace back to a source.

• +Published on PyPI
• +Workflow-named, citation-grounded tools
• +Bridges OGC processes to LLM agents

Self-Hosted Data Infrastructure

IT admin & platform engineer for the whole stack

Architected and operate a self-hosted data platform on a dedicated Linux server: a PostGIS database, object storage, the OGC API, analytics dashboards, single sign-on, automated backups, and a full observability stack. Container deployments are managed through Coolify behind a Traefik reverse proxy — full ownership of the infrastructure, no managed-cloud lock-in.

• +PostGIS · object storage · SSO · backups
• +Coolify + Traefik container orchestration
• +Prometheus / Grafana / Loki observability

OGC Data API & Spatial Processes

Standardised spatial backend behind the platform

Built a standards-based geospatial API on pygeoapi, backed by PostGIS and DuckDB-on-GeoParquet. It exposes feature collections, vector tiles, and spatial-analysis routines as OGC API Processes, with self-describing catalog endpoints so both the web tools and external clients consume one consistent, documented interface.

• +15 feature collections · 9 OGC API Processes
• +DuckDB-on-GeoParquet analytics layer
• +Self-describing /catalog introspection

Branded Map Viewer & PDF Export

Client-facing map galleries with print-quality output

A SvelteKit + MapLibre map viewer with deck.gl layers and print-to-PDF map chrome — a region-aware layout that wraps any web map in a branded, presentation-ready document. Its first client-facing deployment was a public map gallery for an air-quality monitoring programme.

• +SvelteKit · MapLibre GL · deck.gl
• +Print-to-PDF with branded map chrome
• +First public client-facing deliverable

3D Rail-Corridor Scrollytelling

Interactive map-driven storytelling experiment

A scroll-driven 3D map story of a rail corridor, built with deck.gl, MapLibre and Scrollama. The camera flies between waypoints over extruded 3D buildings and terrain, all sourced from open data — a template for turning a spatial analysis into a narrative a non-technical audience can follow.

• +deck.gl + MapLibre + Scrollama
• +3D buildings (3D BAG) + terrain DEM
• +Built entirely on open, no-key data

CO₂ Commuting Calculator

MSc thesis · transport emissions accounting

A tool for Dutch employer commuting-emissions (WPM) reporting that compares accounting methods head to head. It surfaced a 38.7% gap between tank-to-wheel and well-to-wheel figures — a difference large enough to change which interventions look effective.

• +38.7% gap between emissions methods
• +Tank-to-wheel vs well-to-wheel accounting
• +MSc thesis, EIT Urban Mobility

Aviation Impact Analysis

Civic-tech data project · Amsterdam Noord

Processed 1.4 TB of ADS-B flight data from the OpenSky Network to analyse Schiphol operations and aircraft-noise exposure over Amsterdam Noord — building the evidence base for a neighbourhood concerned about overhead traffic.

• +1.4 TB ADS-B flight data processed
• +OpenSky Network ingestion pipeline
• +Noise-exposure analysis for residents

OpenRitardi

Open-data project for Italian rail transparency

A community open-data project to track and publish Italian railway delays, addressing the lack of accessible public-transport performance data and giving riders and advocates evidence to push for better service.

• +Open delay data for Italian rail
• +Community-driven transparency

CBS Demographic Grid Analysis

Spatial data engineering · Dutch statistics

Integrated the Dutch national statistics grid (CBS, at 100 m and 500 m resolution) into PostGIS for population, housing and infrastructure analysis — the demographic backbone that many of the platform’s accessibility and mobility tools query against.

• +100 m & 500 m CBS statistical grid
• +PostGIS spatial query backbone

Open Night Train Database

Data owner & network analysis · Back-on-Track Europe

An open dataset of every scheduled night-train connection in Europe, paired with a reproducible network-analysis pipeline. It quantifies the night-train network — services, countries, route-kilometres, cross-border share — to give rail advocacy evidence instead of anecdotes.

• +404 active services · 26 countries
• +68,627 km of night-train network mapped
• +Reproducible GTFS + graph pipeline

European Sleeper — Venice Launch

Coordinator · Back-on-Track Italy

Coordinated the welcome for the first scheduled night train to arrive in Venice, with partnerships with IUAV University and the PIONEER Alliance — turning a timetable change into a public moment for cross-border rail.

• +~40 participants (in person + online)
• +IUAV University + PIONEER Alliance partners
• +First scheduled night train into Venice