Therefore the Zagreb Municipal Transit System or ZET (standing for the Zagrebacki Elektricni Tramvaj company) observes 5 September as the anniversary day of the beginning of the organised city transport system.
The first electric tramcar was put in service in the streets of Zagreb on 18 August 1910. In one year's time, the network of electric street cars replaced horse-driven trams.
In 1931, ZET included buses for the first time as the new mode of public transport in Zagreb. ZET operates a funicular from downtown to uptown Zagreb, which is the shortest funicular route in the world.
The ceremonies marking the 130 anniversary include a concert of pop songs aboard an open-top ZET bus.
This city company has 266 trams in its fleets, and 142 of them are low-floor trams. ZET has 480 buses.
The company transports more than a million passengers on a daily basis.