The developed infrastructure allows you to quickly and optimally organize a business. The largest airports in Indonesia are Sukarno-Hatta International Airport and Halim Perdanakusuma (Jakarta), Juanda (Surabaya, Java), Ngurah rai (Denpasar, Bali), Polonia (Medan, Sumatra), Sam Ratulangi (Manado, Sulawesi), Hasanuddin (Makassar, Sulawesi). In order to develop air transportation and encourage the tourism industry in the country, a program is being implemented to modernize air transport and its infrastructure. The largest ports that carry out the bulk of transactions with foreign trade cargo are Perak (Surabaya), Balawan (Medan), Makasar (o. Sulawesi) and Tanjung Priok (Jakarta). Developed road network. Modern road networks are concentrated mainly in economically developed and densely populated areas.