Visualising real-time Sydney bus congestion with Marey charts
As a side project I built Sydney Transit Graph - a visualisation of real-time Sydney bus congestion. Each line on the graph (a Marey chart) represents a bus completing its route (percentage) over time.
Visualising real-time Sydney bus congestion with Marey charts launched on November 22, 2022 with 57 votes, #1,066 of 3,471 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
This tool displays real-time Sydney bus congestion using Marey charts, a visualization method that shows how transit vehicles move through stops over time. It helps commuters and transit enthusiasts understand bus network patterns and congestion levels across Sydney's public transport system. The project launched in November 2022 and is designed for anyone planning trips, studying transit systems, or interested in data visualization of urban mobility.
written from the facts on this page · September 2026
From the sources
As a side project I built Sydney Transit Graph – a visualisation of real-time Sydney bus congestion. Each line on the graph (a Marey chart ) represents a bus completing its route (percentage) over time. It’s open source on Github , however I am no longer hosting it due to server costs. The web app displays a map side by side with a Marey diagram. When you move your mouse across the horizontal (time) axis of the diagram, the locations of the buses are displayed at that point in time. The colour of the line represents the occupancy (warmer colours -> higher occupancy) of the service. Sydney Transit Graph uses a Marey diagram to view bus congestion in Sydney – showing the…from jakecoppinger.com
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