This paper discusses the road traffic and parking problems in existing built residential quarter by the survey in Beijing and puts forward the improving countermeasures and strategy.

Economic incentive policy design for energy efficiency renovation of existing residential buildings in northern heating areas based on analysis of externalities;

Technology support for energy efficiency retrofit of existing residential buildings in heating areas in North China;

The financing modes on both domestic and abroad energy-saving modification of the existing residential buildings are compared and analyzed.

Mode selection for energy efficiency retrofit of existing residential buildings based on BP artificial neural network;

In order to put the energy-efficiency renovation for existing residential buildings in northern areas into practice successfully,we must raise money as much as possible.

The methods and the key technologies of scaffolding work,roof renovation,exterior window renovation and exterior wall insulation work in the process of the existing residential buildings energy-saving renovation were analyzed also.

The discussion of municipal water supply channel design flow in residential quarter;

Research into solar-powered photovoltaic lightening in residential quarter;

An Engineering Practice of Domestic Sewage Treatment in a Residential District;

On water-supply engineering planning in constructive detailed planning of residential district;