While we have only known taxis on the street up to now, passenger drones are tapping into the sky as a new mode of transport step by step.

The flying taxi maker EHang has moved a step closer to launching commercial service in China after regulator the Civil Aviation Administration of China accepted the firm's application for an air operator certificate (AOC).

The world's first-of-its-kind acceptance marks the commencement of a review process for applicants' business licenses and operational qualifications for pilotless passenger-carrying aerial vehicles.

The flying taxi services are getting closer.

Not only in China, other cities like Dubai, Singapore, Los Angeles, and Dallas have already been experimenting with Urban Air Mobility projects for some time.

According to calculations, nearly 160,000 unmanned electrical drones will be in use worldwide by 2050 and they will generate an annual revenue of nearly 90 billion U.S. dollars.