ky's the limit for Guangzhou drone taxi firm

Public use of passenger drones, also known as drone taxis, has yet to become a reality and fully depends on improvements in technological innovation and implementation of supportive policies, according to an industry insider.

"This is a step-by-step process. When it comes to the development and application of any transformative technology, first the technological innovation makes an impact, then policies are created and developed," said Hu Huazhi, founder and CEO of Ehang, which makes aerial vehicles.

Hu made the remarks after Ehang, based in Guangzhou, Guangdong province, unveiled footage of the latest test flights of its autonomous aerial vehicle, or AAV, on Tuesday.