Public service quality improvement through thermal comfort assessment for Urban Jakarta, Indonesia

A study of public service quality improvement through thermal comfort assessment was conducted in Jakarta Metropolitan Area. The region is divided into 5 (five) administrative metropolitan areas (North, South, East, West, and Central areas). 367 building occupants/managers from typical government buildings (3-4 stories) with Naturally Ventilated (NV) buildings were selected for the survey. For each selected building, the occupants filled a questionnaire indicating the thermal response in different periods of the day by using the ASHRAE thermal comfort scale standard and public service satisfaction index is simultaneously measured to understand the public service quality. The air temperature variation across the neighborhoods was found to be influenced by different region characteristics. The comfort temperature of subjects in Central Jakarta ranged from 27.06°C to 30.06°C, slightly lower than in the North Jakarta (27.29°C to 30.41°C) and the comfort temperature of subjects in South Jakarta ranged from 25.92°C to 31.89°C. The variations of temperature across the regions and different geographical conditions such as land elevation were found to affect indoor thermal comfort. It is concluded that the building locations and land elevation had an impact on the indoor comfort of building occupants and lead to service quality of its public service. This finding could lead to a better strategy in developing sustainable public service facility in the future.