Indonesia is a presidential republic with an elected legislature. It has a land area of 1,904,569 square kilometres (735,358 square miles) and a population of around 280 million people. The country's capital, Jakarta, is the world's second-most populous urban area. Sustainable Urban Mobility Planning is a new concept in Indonesia. It emphasizes the involvement of stakeholders and citizens in the planning process. It requires the coordination and alignment of policies between sectors (transport, land use, environment, economic development, social policy, health, safety, energy, etc.) and between local government units.