The Leetstell occupies a vast command centre within the Verkéiersverbond in Kirchberg. Created in 2018, its purpose is to improve the comfort and all-round experience of public transport passengers.

As a true command centre open 7 days a week, it monitors all RGTR lines throughout Luxembourg (including cross-border services). Staff are tasked with diverting routes to avoid road blocks, adding additional services to meet user demand, optimising passenger connections and shortening or substituting a route for greater efficiency. In non-stop communication with the bus drivers on the ground via radio or the on-board computers, the Leetstell gives them instantaneous updates on traffic conditions. The service can communicate and display information directly on departure boards at bus stops as well as on in-bus screens, and also provides an audio version for bus drivers and passengers, keeping them on track before, during and after their journey.