The guardrails, emergency catwalks, and guideways for the vehicles were installed on site. So were the cables for lighting, controlling the points (the insider term for railway switches), transmitting signals and other things. Some of the guideway sections could be made directly on site, depending on their size and weight. It was possible to produce smaller ones at the workshop and deliver them. So that trains can also run in very cold weather, all of the guideways were equipped with copper pipes containing heating wires to keep the route free of snow and ice, applying a principle similar to that of underfloor heating.