Abstract
The arcade has been applied to traditional markets to improve their physical environment in Korea. However, thermal discomfort and poor indoor air quality can arise from certain physical characteristics of arcades. This study compares the indoor environments of three traditional markets after their streets have been transformed into arcades and finds the design elements affecting indoor environment. The actual temperature, humidity, air velocity, CO/CO2 and etc. in the arcades were measured. The indoor environment of the arcade was greatly influenced by its shape/size, roof materials and opening for ventilation.