 In 1929, TL began their first bus service, followed in 1931 by the first modern trolleybus in Switzerland, on a route between Lausanne railway station and Ouchy.It led to the closure of the tram line between Closelet and Epinettes, which was not as suitable due to higher costs and the steep slope, meaning low speed and heavy use of brakes.The pioneering trolleybus is now preserved by the Trolleybus Association "Rétrobus" in Geneva.