The line graph illustrates the changes in passenger numbers for four modes of public transportation in a European city from 2000 to 2025.
Overall,the metro experienced a steady upward trend, eventually becoming the most popular form of transport.Conversely, bus usage saw a gradual decline over the period, while both tram and bicycle-sharing services recorded significant growth, particularly by the end of the period.
In 2000, Buses were the most widely used public transport, carrying roughly 42 million passengers,whereas the metro ranked second with 26 million. Bus passenger figures slightly increased to a peak of 46 million in 2005 before experiencing a continuous decline to 30 million by 2025. In contrast, metro usage grew steadily throughout the entire period, overtaking buses around 2011 and reaching almost 60 million passengers by 2025.
Regarding the remaining two modes, tram remained relatively stable at around 15 million from 2000 to 2010, before steadily rising to approximately 31 million in 2025. Bicycle-sharing , which was introduced with a minimal figure of about 2 million in 2000, grew consistently over the 25 year period. By 2025, bicycle-sharing usage reached approximately 33 million, surpassing both buses and trams to become the second most popular choice.