The provided pie charts illustrate the primary modes of transportation utilized by individuals commuting to a university for employment or education in 2004 and 2009.
Overall, there was a noticeable increase in the usage of various transportation methods from 2004 to 2009, except for cars. The bus was the most favored mode of transport, while the train was the least favored.
In 2004, the most popular mode of commuting was by car, representing 51% of the total, which significantly declined to 28% by 2009. On the contrary, the usage of bicycles substantially rose from 33% in 2004 to 46% in 2009. Additionally, there was a considerable increase in the preference for buses, which rose from 9% to 16% over the same period. Moreover, the utilization of trains experienced a slight incline, reaching 6% by 2009. Similarly, walking also saw an increase, reaching 4% by 2009.
It is interesting to note that the introduction of a new bus stop at the university in 2006 may have contributed to the significant rise in bus usage. Furthermore, the changes in parking regulations for private vehicles, especially cars, at the university in 2008 may have influenced the decrease in car usage for commuting.