Beijing subways will try to run round-the-clock on the opening and closing days of the Olympic Games.

The move was aimed at relieving heavy traffic on the two days, Aug. 8 and Aug. 24, while the operating hours would be extended on other days of the Games, Tuesday's Beijing Daily quoted an official with the Beijing metro operation company as saying, without giving further details.

The subway is expected to carry the bulk of passengers to the National Stadium, also known as the "bird's nest", on the opening day when about 100,000 people are expected to attend the ceremony, he said.

The No. 10 route linking the stadium with the downtown area was expected to have intervals between trains shortened from four minutes to three minutes during the ceremonies, said the official.

Subway stations would have "green channels" for ticket holders, Games staff and volunteers, who will be exempted from paying the 2-yuan fare during the Olympics.