A private tramway company, the Strassenbahn Zürich-Oerlikon-Seebach (ZOS), opened a line from Zürich Seebach to Glattbrugg in 1908.

In the period following World War II, the Glattal area experienced a rapid boom as population and industry spilled over from nearby Zürich.

[1] By the 1990s, it was recognised that the bus services in the Glattal region were suffering from both road congestion and vehicle overloading.

[1] Following the evaluation of alternatives, including a monorail system, a metre gauge tram was selected on account of its compatibility with that of neighbouring Zürich and the ability to provide through services.

As a first stage, the route from the airport to the centre and industrial and commercial area of Kloten is to be extended from 2025 onwards, with the terminus in Bassersdorf Grindel.

The project includes a bridge over the airport motorway, a main cycle link and the upgrading of the old stream in the centre of Kloten.