How do you go around in Beijing?
Between 2005 and 2011, Beijing population increased by 31%, from 15.4million to 20.2 million. At the same time, the use of bicycle has significantly dropped from 33% to 18%. The part of the subway in the daily trips increased from 4% to 14%, mainly due to several subway project expansions which brought the number of lines from 4 to 15 and the total length of the subway network from 114km to 372km. Since 2008, Beijing has implemented a regulation to keep private cars off the roads one day per week which has helped maintain the part of the private car below 35% of the daily trips, in spite of the increase of the total number of cars in Beijing.