Beijing - The road-clogged capital is expected to extend controversial restrictions on car use as traffic jams continue to be one of the city's most serious headaches.

Liu Xiaoming, director of the Beijing municipal communications commission, told a public radio show on Saturday that the "No-Car Day" restriction is likely to be enforced again this year.

"Authorities are finalizing assessments of the current ban among some members of the public and policy advisors. We will soon make the announcement," Liu said.