@tom_andraszek I think we've got a not dissimilar reference point.

For me, its Laisves alėja in Kaunas (in Lithuania).

There's two rows of trees down the middle.

There's park benches under many of those trees.

The generally accepted rule is that you cycle (or skateboard) in that area.

There's a wide pedestrian space either side.

The buildings on either side are around four storeys tall.

You have shops and cafés on the ground floor, with all fresco dining.

You have small offices (doctors, dentists) and apartments on the floors above.

The pedestrianised street runs the entire length of the Kaunas CBD.

It begins in the old town, near Kaunas Castle and the confluence of the Nemunas and Neris Rivers.

It runs around 1.6 kilometres east.

There are trolleybuses running parallel along the streets one block north and one block south.

It would be worthwhile for Australian urban planners to head out to Kaunas just to see this one street.

I guarantee they'd learn a lot about what a pedestrianised space should be.