The Pearl River Delta Metropolitan Region Intercity Railway System is a regional higher-speed rail and commuter rail network being gradually constructed in the Pearl River Delta (Yuegang'ao Greater Bay Area), People's Republic of China. The project's goal is to have every major urban center in the Yuegang'ao Greater Bay Area to be within one-hour travel by rail to Guangzhou. On March 16, 2005, the State Council examined and approved plans for a regional high-speed commuter rail network for the Jingjinji, Yangtze River Delta and the Pearl River Delta. According to the plan, by 2020, PRD MAIR network will have a total route mileage of about 600 kilometres (370 mi). In September 2009, the plan was expanded to 1,478 km (918 mi) of routes split up into 23 lines. In the long term vision network length will reach 1,890 km (1,170 mi) by 2030. By then the network will provide basic coverage to the Pearl River Delta region.