The World’s busiest metro systems

The proliferation of metro systems has rocketed over recent decades, as decision-makers from all corners of the globe recognise their huge potential to enable cities to thrive.As metro continues to grow we take a look at the regional split of metro systems across the world.

Alstom and Raconteur’s Beneath our Cities: The Rise of the Metro report explores the history of the metro, the digital technologies and big data set to revolutionise metro systems and the cutting-edge technologies helping metro systems become greener, cheaper and more reliable.

The following data shows the role of the metro including annual trips and network length.

Annual Trips

Network length


Metro systems have been connecting people and cities since 1863 when the first metro system was constructed in London.

The Growth of Metro Systems



Asia-Pacific holds the title of the most cities with metro systems, the longest total length of track and a staggering 71 million passengers per day. Europe follows in close second with 31 million passengers a day and 45 cities with metro systems.

Regional Split of Metro System