During the highly centralised New Order regime of Sukarno's successor Suharto, Jakarta was further established as the political and economic core of the nation. Prompted by rapid development and urbanisation, Jakarta attracted large numbers of new settlers from all over the archipelago, with the majority coming from rural Javanese towns. High-rise buildings sprung up, especially in Jakarta's commercial and financial centres along Thamrin, Sudirman, and Kuningan avenues. As a result, since the 1970s, the population of Jakarta has spiked tremendously and spilled into areas surrounding the capital. The Jabodetabek, or Greater Jakarta, region has become the largest and the most densely populated urban agglomeration in Southeast Asia.