The mentioned graph illustrates the usage of four different modes of transportation in a European metropolitan area from 1980 to a projected 2030.
Overall, subway use is projected to maintain the dominant position, and the tram usage is projected to maintain the second leading position. The popularity of bus usage is projected as declining. On the other hand, bike share usage is projected as slightly increasing at the end of the period.
In 1980, the subway was the most popular mode of transport, with approximately 2.5 million monthly commuters, followed by the bus at around 1.5 million, and the tram was the least used, with fewer than 0.5 million commuters. Subway usage improved steadily to 5 million, while tram ridership saw a gradual increase to about 2 million, and bike share was still the least popular option.
While the subway is predicted to maintain its leading position at the end of 2030, bus usage is projected to decline dramatically to below 1 million commuters. On the other hand, tram use is forecasted to climb to over 3 million, and bike share is expected to cross 0.5 million commuters.
