[steam for ever]

The thing is steam has been developed since, but thats a different subject.
I will come back to that at another time.
The fact is that the roads that replaced the railways had a maximum traffic allowence much less than the railways, even though it was clear that the population was becoming astronomical.
Why oh why then did they not realise this.
In may cases now we need both.
Some examples are the waverly route and some parts of the Great central.