The purple line will run between Dubai International Airport to Al Maktoum International Airport, along Al Khail Road.

Announced in 2007, proposals of the line have since been suspended indefinitely.

However The Dubai Airports claimed that this was unfeasible as it did not pass through many localities.

However they suggested opting for a "central terminal" similar to ones in the US where trains leave from inside the airport to the other airport with trains also leaving to the city.

The Purple line will be 49 kilometres (30 mi) long and trains on this line will travel at an average speed of 110 kilometres per hour (68 mph).