Riding flying taxis sounds fancy, but how will we avoid mid-air collisions?

There's a big difference between a helicopter-style charter service and a fully operational fleet of flying taxis - whether they're automated or piloted by humans

When the American aerospace company Bell Nexus unveiled an air taxi at the Consumer Electronics Show (CES) in Las Vegas this month it breathed new life into conversations about a future where ride sharing happens in the air rather than on the ground.

Recent comments to the ABC by Australia’s Civil Aviation Safety Authority (CASA) lent credence to the idea that we may see flying taxis operating in Australia within five years.

CASA spokesman Peter Gibson said:

It’s a bit like you can just go and charter a helicopter at Brisbane to go to