Beijing's annual bill for traffic congestion amounts to 70 billion yuan ($11.3 billion), a recent study has found.

According to a 2014 survey conducted by Peking University's National Development Research Institute, 80 percent of total loss relates to time wasted waiting, 10 percent to gas and 10 percent to environmental damage.

Statistics drawn up by Beijing Department of Transportation shows that in 2013, the capital's average daily congestion time came to one hour and 55 minutes, 25 minutes longer than in 2012.

The waste in gas is increasing rapidly as more and more cars hit the road. In 2013, 21.98 million vehicles were sold in China, up by 14 percent over 2012.

Idling time also adds to Beijing's already-bad environmental problem via increased emissions.

The city started tackling the problem years ago. In 2011, it introduced a lottery system to rein in the number of vehicles people buy. It also launched a policy to ban private cars one work-day a week based on the last digit of the number plate. Beijing has put restrictions on the number of vehicles from outside the city and raised parking fees in urban areas. However, such measures have done little in reducing congestion.

What's worse, traffic jams have also become a problem for third- and fourth-tier cities, a report jointly issued by China Central Television, National Statistics Bureau and the Postal Service revealed.

In future, Beijing will continue studying proper economic policies and use technology to build a smart city and improve the public traffic experience.

Car-Free Day sees Beijing traffic congested as always	Beijing seeks ways to relieve congestion