This study applied automotive vibration control technology to reduce interlayer noise of apartment housings. Light-weight impact sound and heavyweight impact sound were tested for performance evaluation of sound insulation. Test results showed that automotive vibration control technology was superior in light-weight impact, however, heavyweight impact sound was unplaced.

This paper analyzed the CO2 emission of existing buildings on the operation phase in the declined residential area of Jeonju old town. The average CO2 emission to square meter of residential buildings in jeonju was calculated.