The Hong Kong government vowed on Oct. 6 to build an area in the north of the special administrative region into a new metropolitan zone where people can live, work, and travel.
The approximately 300-square-kilometer metropolitan zone  is expected  to boost the development of Hong Kong and Shenzhen port economic belt and the Guangdong-Hong Kong-Macao Greater Bay Area.
Last year, Luohu released a notice supporting professionals from Hong Kong and Macao to work and start their own businesses in Luohu’s pilot zone for coordinated development.
Work on the Shenzhen Railway is currently underway. The Shenzhen government also urged customs clearance, improvement of ports management, and expansion of Shenzhen-Hong Kong cooperation.
There are  ports and other transportation facilities connecting Shenzhen and Hong Kong, making it possible for the two cities to work closely with each other in the areas of the economy, innovation, technology, ecological preservation, and people’s livelihoods.
PricewaterhouseCoopers suggested that infrastructure construction in the Greater Bay Area should demonstrate more foresight, try to make breakthroughs, and enhance economic liquidity by linking these facilities with the internet so as to produce scale and cluster effects. It also advises that seamless transportation connections should be realized in the Greater Bay Area.  
Song Ding, an expert on Chinese city economy, believed that after Hong Kong proposed to build the northern metropolitan area, Shenzhen is bound to make a strategic adjustment to realize comprehensive and integrated development with Hong Kong.
With Shenzhen and Hong Kong as the cores of the Greater Bay Area, Song added, the other cities in the region, such as Dongguan, Huizhou, Heyuan, and Shanwei, can form a new pattern of organic linkage and shared development.
It’s believed that the Shenzhen-Hong Kong metropolitan circle has great potential in finance, innovation, modern intelligent manufacturing, logistics, international trade, network economy, and metropolitan consumption, and will make new history in the development of China's regional urban clusters.