Road signs in Indonesia the rules are not being implemented properly. Indonesian road signs use Indonesian, the official and the national language of Indonesia. However, English is also used for important public places such as tourist attractions and airports. Bilingual signs can be found in tourist areas such as Bali. Indonesia signed the Vienna Convention on Road Signs and Signals but have yet to ratify the Convention. Warning signs warn of possible dangers or unusual conditions ahead and alert motorists on the hazards to expect. Warning signs in Indonesia used to closely follow The American MUTCD and Japanese diamond-shaped with yellow background and black-and-yellow
Culture of Indonesia cities and large towns there are also many commercial stations. Since 2006, several digital radio stations have been based in Jakarta and Surabaya, using Digital Audio Broadcasting (DAB) and Hybrid HD-Radio. Islam is Indonesia's main religion, with almost 88% of Indonesians declared Muslim according to the 2000 census, making Indonesia the most populous Muslim-majority nation in the world. The remaining population is 9% Christian (of which roughly two-thirds are Protestant with the remainder mainly Catholic, and a large minority Charismatic, 2% Hindu, and 1% Buddhist. The "Pancasila", the statement of two principles which encapsulate the ideology of the Indonesian state,