This graphic is best seen up close since with just a glance it is not clear what information it is conveying. The thickness of the lines indicate more traffic on certain roads, and the color the percent change the year before. Some roads are labeled but this is of little interest to someone who is not familiar the roads. That is the biggest drawback of this graphic - that one must be familiar with the Hong Kong road layout to best understand what areas of the city have changed most.
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