(CNN) - More than half a million people in Tokyo are being asked to work from home as part of a trial scheme aimed at tackling transport congestion ahead of the 2020 Olympic Games in the city.
Over 20 million people use public transport in the greater Tokyo area every day, and it is feared the arrival of more than 600,000 people visitors to the Olympic and Paralympic Games will overload the city's notoriously strained system.
Japan's Ministry of Economy, Trade and Industry (METI) is hoping that more than 600,000 workers from 3,000 companies will take part in the trial.
Home to nearly 38 million people, Greater Tokyo is the most populated metropolitan area on Earth.
63,000 people took part in the first trial in 2017, with the number jumping to 300,000 people from 1,682 organisations in 2018, METI confirmed.