Growth Analysis of Regional Service Facility Centers in DKI Jakarta Province in 2020

The DKI Jakarta Province is the capital city of the Republic of Indonesia and is the center of national economic, political and cultural activities. according to World Bank records, this province is classified as one of 20 megalopolitans or mega-urbans. DKI Jakarta Province is located south of the Java Sea; in the east bordering the Regency/City of Bekasi; in the south with Bogor and Depok Regencies/Cities and in the west with Tangerang Regency/Cities. The strategic location of DKI Jakarta Province in the Indonesian Archipelago makes Jakarta the main gateway in inter-island trade and international relations with its main ports of Tanjung Priok and Soekarno Hatta Airport. DKI Jakarta Province recorded the highest inter- regional trade surplus due to being a supplier to the provinces in Indonesia, therefore in writing this scientific paper, we take an area in the DKI Jakarta Province to find out how far the growth of service centers in the city of Jakarta greatly affects the economy in the region. The objectives to be achieved in this research are: 1. Analyzing the growth of service centers for public facilities in DKI Jakarta Province from 2020, analyzing the distribution of public facilities, and Analyzing the strength of regional interaction in DKI Jakarta Province in 2020. To find out regional service centers, using the Marshall Centrality Index method, where the method is carried out to calculate the weight from secondary data by using the number of existing public facilities and using the gravity method to determine the strength of regional interaction from the service center area.
The results of the map of service centers in DKI Jakarta in 2020 occupying the service center area using the Marshall Centrality Index method, which is with the highest value of 197.63 in Jakarta Selatan and the lowest value of 6.89 in Kepulauan Seribu the strength of interaction between regions using the reference of the Regency which is the service center shows that the strength of the interaction between Jakarta The center and North Jakarta are very strong, reaching the highest interaction value of 43,309,888,000. Meanwhile, the interaction strength between the Seibu Islands and Central Jakarta is very low, reaching the lowest interaction value, namely 9,625,015.4