Brio Ramp

Arched Brio ramp, in addition to my Brio collection.
https://www.printables.com/model/279651-brio-brio-brio-more-than-20-rails-and-switches

You can print it without top and bottom layer. 
I've sliced mine into 2 parts – have a look at the 3mf slicer file.

PLA 
0.3 mm layer height

Edit 20221109:
Small correction to the arch pillar (v13).

Update 20221204:
Added improved design with transversal connections (dovetails). 
Thanks @Lammesky for the suggestion.
The pegs are located on the edge to further allow printing without a top or bottom layer revealing the infill pattern.