The main passenger airport serving the metropolis and the state is <answer>Melbourne</answer> Airport (also called Tullamarine Airport), which is the second busiest in Australia, and the Port of <answer>Melbourne</answer> is Australia's busiest seaport for containerised and general cargo. <answer>Melbourne</answer> has an extensive transport network. The main metropolitan train terminus is Flinders Street Station, and the main regional train and coach terminus is Southern Cross Station. <answer>Melbourne</answer> is also home to Australia's most extensive freeway network and has the world's largest urban tram network.
What city is known to be home to Australia's most extensive freeway network?
Melbourne