SGT'S Ontario Transit Pack 1.0.0.zip is a release file of the Minecraft resource pack SGT'S Ontario Transit Pack | Immersive Railroading, made for Minecraft 1.12.2. It was published on June 10, 2021 and is 5 MB in size. For the full description, screenshots and every other version, visit the SGT'S Ontario Transit Pack | Immersive Railroading resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.