Access to public services
A pilot study of walking times from populated neighbourhood cells to registered primary-school locations in Dordrecht.
Map data © OpenStreetMap contributors.
Data products for complex organisations
I turn fragmented data into products people can use.
I work across data access, competing definitions, pipelines, analysis and review. The result is a product that makes a complex system easier to understand and act on.
Selected experience
GGD Rotterdam-RijnmondThe Walt Disney CompanyRoyal HaskoningDHV
Selected work
Making complex systems visible
The subjects change. The work consistently starts by understanding how data, definitions and decisions interact in practice.
Public health
Four source systems, more than 100 measures
A regional dashboard that brought access, definitions, review and technical delivery into one product.
Construction safety
An approved plan tested again
A simulation exposed a cyclist queue beside an active lifting zone and supported a safer operating plan.
Independent product
Messages without a mobile network
Bliep combines firmware, electronics, hardware and an app in a small mesh radio.
Public data lab
Research using public data
The lab contains small research projects built from public data. Each project states its status, sources, method and limitations.
Writing
Articles
Notes and longer articles about data work, technical decisions and project delivery.
Using data to extend expert judgement
Intuition develops through repeated experience and quick feedback. Large systems provide neither, so experts need data and models to see beyond their own part of the system.
Why a public health dashboard took 18 months
Building the 22-page Power BI dashboard took about eight months. Data access, indicator selection, definitions and review accounted for most of the remaining ten.
How an artificial intelligence assistant recommended a compromised website
An artificial intelligence assistant directed me to a compromised conversion site. A fake CAPTCHA then instructed visitors to run malware through the Windows Run dialog.
Working together
Bring me the question, the data and what has already been tried.
I take on a limited amount of independent work. A useful first message describes the problem, the available data and what has already been tried.
Discuss a data project