The provided bar charts illustrate the proportions of transportations that commuters use to work in London for two periods of ten years, from 1990 to 2010.
In generaly, there was a slightly change for three periods. It’s obvious that underground railway was the most convenient vehicals for 20 years. The opposite was true for motorcycle, with the less popular usages.
In generaly, the proportion of railway trains decreased slightly till the end of the period, from 38% to 34%. However, it still holded the largest part of the chart. In contrast, the usages for motocycle didn’t witnessed a quite increase, just by 1% from 5%, occuping the smallest part of the chart.
At the other hand, the figure for cars and trains didn’t experienced a disparity. Both of them were decrease with a small change, from 22% to 19% and 24% from 23%, respectively, and accounted for proximately a quarter of the charts together. Walk and bicycle were developed in a same manner too. Besides the fairy stablity of walk, the total usage of bicycle inclined notably, by 6% from 4%, ranking at the fourth of the lastest chart.