Transport peaks at holiday end

China's transport system was tested on Wednesday as tourists returning from their May Day holiday trips pushed traffic flow in many places to record highs.

There were an estimated 2 million vehicles on the highways in Beijing on Wednesday, the last of the three-day holiday, a 41 percent rise from last year, according to the Beijing Municipal Commission of Transport.

A nationwide toll-free policy was implemented during the holiday, starting from Monday. It boosted tourism and increased the number of vehicles on the road.