OSAKA — Full-scale work will begin at the end of this month to redevelop the Umeda Kita Yard, north of JR Osaka Station, where about 2.5 million passengers of railways and subway lines pass through daily.

The former rail yard occupies about five times the space of Tokyo Dome.

As the Kansai region stagnates due in part to the overconcentration of power in the Tokyo metropolitan area, the region's local governments and economic organizations will redevelop the tract into an environmentally friendly "center of knowledge."