What does PRD mean in Regional?

Pearl River Delta

The Pearl River Delta Metropolitan Region (PRD, Chinese: 珠江三角洲都會區; pinyin: Zhūjiāng sānjiǎozhōu) is the low-lying area surrounding the Pearl River estuary, where the Pearl River flows into the South China Sea. It is one of the most densely urbanized regions in the world, and is often considered an emerging megacity. The region's economy is referred to as Pearl River Delta Economic Zone, while the Chinese government's development plans consider it part of the Guangdong-Hong Kong-Macao Greater Bay Area. The PRD is a megalopolis, with future development into a single mega metropolitan area, yet itself is at the southern end of a larger megalopolis running along the southern coast of China, which include metropolises such as Chaoshan, Zhangzhou-Xiamen, Quanzhou-Putian and Fuzhou. The nine largest cities of the PRD had a combined population of 57.15 million at the end of 2013, comprising 53.69% of the provincial population. According to the World Bank Group, the PRD has become the largest urban area in the world in both size and population.This region was also the source of much Chinese emigration from the 19th to the mid 20th centuries, including to the Western world, where they formed many Chinatowns. Today, much of the Chinese diaspora in the US, Canada, Australia, Latin America, and much of Southeast Asia traces their ancestry to this region. Its dominant language is Cantonese.

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