Construction has begun on the Zhenru Subcenter in Putuo District, which will feature skyscrapers, commercial hubs and the largest downtown greenbelt. The project is among the 33 key construction works which were launched on Friday in the northwest downtown, with a total budget of more than 20 billion yuan (US$3.1 billion). They include infrastructure, new parks, schools, shopping complexes and nursing homes, along with housing renovation, which are aimed at improving the quality of people’s lives.