Scalability of the travel network question

Ladies and Gentlemen,
does anyone have any experience with very large travel networks? To what extent can they be scaled?
Would you expect a model containing 50000-100000 network nodes to work?
Thank you!
Vadim

That's a lot of network nodes. You will probably run out of memory if you have that many. I would try to make simplifying assumptions to reduce the number of network nodes. You can use splines for curves, for example.