The given pie charts illustrate that how commuters travelled to work in London in the year 1990, 2000, and 2010.
Overall, commuters preferred underground railway for their travelling in all three decades as compared to walking, motorcycle, bicycle, train, and car, but the percentage declined from 38 to 34 percent.
In the year 1990, it can be seen that only 5 percent of people liked to travel via bicycle but the percentage increased significantly to 10% in the year 2010. There was rose in percentages of motorcycle and bicycle. But the pattern is not smooth for walking, first it was increased to 10% and then declined to 9%. The use of motorcycle remained same in the year 1990 and 2000 but it is increased to 5% in the year 2010.
In conclusion, people mostly liked to use underline railway for their travelling more than any other travelling source in all three decades.