An Expo Express train, painted with the logo of World Expo 2010 and its mascot Haibao, was off and running on Toei Oedo Line in Tokyo this afternoon, marking the start of a photo show promoting Shanghai Expo 2010 in Japan.

Promotion video clips are aired at each carriage of Expo Express trains on four Metro routes with 1,280 photos depicting Shanghai's urban scenery, city life and planning of Expo 2010 exhibited inside the carriages.

The photo exhibition has been expanded to cover four Metro routes, the Hokuso Line, the Keisei Line, the Keikyu Line and the Toei Oedo Line, compared with one Metro line operating a similar photo show last spring in Japan.

Zhu Yonglei, deputy director general of the Bureau of Shanghai World Expo Coordination, expressed his hope that the photo show would give Japanese people a better understanding of Shanghai’s development in recent years.

The four Metro lines will constitute a mobile pavilion of Expo 2010 reaching a daily passenger flow of 4.95 million, Zhu said.

The show, part of Shanghai Week in Japan, will run through April 24.