Nice effort and just shows you how far the art/science of dataviz has come with the ability of websites to work like realtime game engines.
This is the same information visually expressed in a grid chart from 1983 by Edward Tufte (The Visual Display of Quantitative Information). While the method can't scale the same way it feels like a more creative approach :
I wouldn't say that Maray's chart as cited by Tufte is directly comparable: it displays the timings of trains along a one-dimensional railway, therefore displaying two dimensions of continuous data for each train (the second dimension being time). The online map displays a two-dimensional area, with an extra (quantized, not continuous) dimension of time with the colour-coding. It's a tradeoff between displaying more precision for fewer train timings or less precision for many train timings.
This is the same information visually expressed in a grid chart from 1983 by Edward Tufte (The Visual Display of Quantitative Information). While the method can't scale the same way it feels like a more creative approach :
https://www.edwardtufte.com/wp-content/uploads/2024/03/VDQI-...