Zurich airport could become the first in Europe to use autonomous buses to transport employees around the runway. The system is currently being tested with a driver on board in case of problems. The pilot project has been underway since March, Zurich airport said on Tuesday. Since June, employees have been able to board an autonomous bus to get to their place of work. The vehicle travels between an airport service building and a maintenance depot located on the other side of a runway. +Get the most important news from Switzerland in your inbox The journey takes place on the edge of the tarmac and runways, over a distance of around 2 km. There are several stops along the way. Next phase without a backup driver From the end of this year at the earliest, the next phase of testing will take place without a driver or passengers. The buses will continue to run automatically, but they will be monitored and, if necessary, restarted remotely from a cockpit installed in the Circle business …