By focusing on the urban high-rise areas such as London, New York, and Shanghai, it is clear that the areas all share several features including; high population density, traffic congestion and people regularly on the move. This identifies potential opportunities that the three cities share: efficient crowd management, reducing traffic congestion on the roads and utilizing vertical space.

Inspiration was drawn from cable cars, city light rail and taxis to create a new transport system that utilizes the space above the streets.
GRAVITY is an urban three-dimensional intelligent traffic circulation system which is an efficient, convenient and energy saving transportation solution. GRAVITY can effectively reduce urban traffic and improve the mobility. The future development of cities is at the core of this concept.