[kube-system]

> The roads should preferably be motorways or express roads (unless traffic density is low so that there is no congestion on an ordinary road).

That sounds more similar to the US Numbered Highway system than it is to the Interstate Highway System: https://en.wikipedia.org/wiki/United_States_Numbered_Highway...

The Interstate Highway System is a different system - entirely controlled-access motorways, with a minimum of 4 lanes, divided, and no at-grade crossings.

[NLips]

I don't think the parent is saying the whole E-road network is the equivalent; just that it provides examples of moving country to country without leaving motorways.