These models are Add-On to: H0 Single Edge Platform Modules (separate downloads):

https://www.cgtrader.com/3d-print-models/hobby-diy/hobby-accessories/h0-single-edge-platform-modules-basic-set-4colors-fdm

Name: H0 scale Single Edge Railway Platform Modules:

(1) MP204 FirstWithBarrier4colors

(2) MP205 LastWithBarrier4colors

Note: the elements are not symmetrical, if you want to print a symmetrical platform on the other side of the tracks, you need to print the modules in mirror image (in the slicer)

Scale: H0 (1/87)

Printer (my printer): Anycubic Kobra S1 with one Ace Pro (4 colors)

Colors: (1) gray; (2) black/dark gray; (3) pink/red (4) white/yellow

What you'll receive after downloading the project: 3MF file: project Anycubic Next Slicer (based on Orca Slicer). This file contains a ready-made project for printing on a Kobra S1 printer equipped with one Ace Pro.

I assume that the project can be printed on other color FDM printers, not only the Anycubic Kobra S1, but I only have this printer and I have no way to verify it.