[PaulHoule]

I'd consider Amsterdam, where many kinds of transportation are carefully weaved together

https://www.google.com/maps/place/Schiphol+Amsterdam+Airport...

In that area you will find highways, surface streets, bike paths, pedestrian walkways, trams, commuter trains and other kinds of transportation in a way that comes across as elegant, at least to me.

[kaibee]

I think they still keep them as fairly separate networks, even if they highly overlayed and so have many intersections.