Contributing an estimated JD477.5m ($678.05m), or 4.25% of Jordan's GDP, according to figures from the Central Bank, the construction sector performed strongly in 2007. The Great Amman Municipality (GAM) completed its master plan for the capital, which is expected to grow from 700 km2 today to 1700 km2 by 2025. Amman is changing from a predominantly horizontal to a largely vertical city due to various clusters of high-rises. Significant developments outside Amman include the rapid residential build-up of Zarqa, the transformation of Aqaba into a commercial and tourist centre, and the construction of a series of high-end hotels and tourist resorts along the Dead Sea. A new airport terminal, Amman ring road and a light rail between the capital and Zarqa are being constructed.