DRIVERS won't be able to drop passengers off at the front doors of Melbourne Airport under a far-reaching airport development plan.

Instead, a new elevated road would be built to funnel airport traffic into a multi-storey, multi-modal transport hub situated further away from the terminal.

A concept drawing of Melbourne Airport's proposed new transport hub.

Covered pedestrian fly-overs would bridge the new transport hub and the terminal buildings, but will mean a longer walk for passengers and their bags after being dropped off.

The changes, which are only at the concept stage, are designed to alleviate traffic congestion and the current forecourt clash between cars and pedestrians on zebra crossings.