Guangdong-Hong Kong-Macao Greater Bay Area Biotechnology Alliance will play a crucial role to boost biotechnology development in Hong Kong and the cities of the Greater Bay Area. With well-developed cross-boundary transportation networks and facilities, there is frequent communication and partnership between the cities. In recent years cross-boundary passenger traffic has been on the rise, and in 2018, over 235 million passenger trips crossed the border via land crossing with a daily average of over 640, 000 passenger trips.