The pie charts compare the methods people used to travel to work in London, Delhi and Amsterdam.
Overall, public transit was the leading method in London and Delhi, whereas cycling was the most popular option in Amsterdam. Cycling was rare in the other two cities.
In London, 46% of commuters used public transit and 34% travelled by car. Walking accounted for 14%, and just 6% cycled. Delhi had a similar pattern, with 48% using public transit, the highest figure for any city, and 22% going by car. Walking was more common than in London, at 22%, while cycling was slightly higher, at 8%.
Amsterdam presented a completely different picture. The bicycle was used by 38% of commuters, the largest share for any mode in that city and more than four times the figure for Delhi. The remaining three methods were close together, with car use at 22% and both walking and public transit at 20%.
Delhi and Amsterdam had the same car share, at 22%, while London's was the highest of the three, at 34%.