Beijing will continue to correct urban ills in the next five years and take action to make the city better for its 21 million inhabitants, city communist party chief Cai Qi said.
Cai, secretary of the CPC Beijing Municipal Committee, addressed the municipal Party congress, which opened Monday gathering more than 770 delegates.
Beijing is undergoing profound changes and all-out efforts have been made to address the urban ills which have troubled the city for years, delegates said.
Cai pledged to make Beijing "thinner and healthier", by addressing problems of smog, traffic jams, and high-flying property prices.
Beijing aims to cap the population at 23 million in 2020, which means it can only increase by 1.3 million residents over the next three years.
After Beijing moves colleges, hospitals, factories, and markets out of the central area, the vacated land will be built into parks and green areas, said Cai.
The city now has 19 metro lines, totalling 574 kilometers. More lines will be built and Cai vowed to make the public transit system easier for users.
By March this year, Beijing had shut down all of its coal-fired power plants, becoming the first Chinese city to have all of its power plants fueled by clean energy.
"Beijing is on a journey to become a green city with blue skies, clean water and forests in the future," said Cai.
The planned construction of Xiongan New Area to the south of Beijing, and Tongzhou subsidiary administrative center will remove pressure from the Chinese capital, said Yang Anjiang, former top political advisor of the city.
In the last five years, Beijing has made achievements in addressing its problems, and laid a good foundation for the future, but it has to make prolonged and tough efforts before it can meet its development target, he said.