Moving People and Ideas

Hi there! My name is Willem, and I am a transit and rail researcher with academic and professional experience in data-and-mathematics driven analysis and modelling of urban transportation systems. I bring a strong theoretical and applied research background that emphasizes practical and adaptive applications of theoretical models and bridging the theory-data gap. I am currently a Postdoctoral Fellow at the University of Toronto's Transit Analytics Lab.

Latest Posts


Do We Need Behaviour Models in Transit Planning?

November 09, 2021
Is prediction necessary for good transit planning? Alex Karner and I elaborate on a recent exchange with public transit consultant Jarrett Walker.

August 16, 2021
Five Minute Findings: Cycling and Infrastructure

A quick look at recent studies on cycling infrastructure, complete networks, and getting it built.

July 14, 2021
Six Better Ways to Visualize Transit Reliability

Despite reliability being at or near the top of what's important to passengers and data that is commonly available, transit agencies lack nuanced and detailed reporting on reliability. Here are six visualizations that can help communicate the reliability of a route better.

May 02, 2021
Did VIA's Reliability Improve in 2020?

Comparing VIA Rail arrival data from 2019 to 2020 to learn if the Coronavirus had an impact on the reliability of operations.

April 27, 2021
Visualizing Populations with Dot Maps

Dot maps are a great way to show many facets of a population in a dense area.

January 15, 2021
The Ridership Return Question

When, how, and why will transit ridership bounce back? Industry experts express optimism for a 2-5 year ridership recovery.

January 13, 2021
A Dabble in D3

A guide and reference for web-based data visualization