Airports are empty. And hurting.

Airports Council International now estimates a drop of more than 4.6 billion passengers globally for all of 2020.

The airport trade group also estimates that total airport revenues worldwide will drop by more than $97 billion for 2020.

Still, airports are making plans for welcoming back travelers.

It's a new dawn, it's a new day, it's a new life and we’re prepared for it. Next time you’re passing by, you’ll notice some changes in our facilities and signage in order to provide a healthy and safe environment to all of our customers.

Details: https://t.co/HFQ74iGNoA pic.twitter.com/6elIg9lSkY

— Orlando International Airport (@MCO) May 6, 2020

Orlando International Airport (MCO) says passengers will see new social distancing signs and markers through the airport terminal. Acrylic protective screens are being installed at ticket counters and at retail food and outlets as well. Cleaning crews are also out in force. And passengers are being urged to wear face masks in the airport.

Tampa International Airport (TPA) is also getting ready.

TPA will be ready when you are.

Check out what we’re doing to keep our passengers and employees safe and healthy:https://t.co/sbfCPbiI96

— Tampa Intl Airport ✈️ (@FlyTPA) May 6, 2020

TPA rolled out a plan that includes, among other things, wider security lanes and recompose areas, and plastic shields in high traffic areas.

The airport is also blocking some seats in gate areas and only allowing ticketed passengers in the terminal.

And at Pittsburgh International Airport, robots are moving in.

Pittsburgh International Airport (PIT) has joined other airports around the world in adding robotic cleaners to its maintenance crew.

The airport’s new germ-killing robot uses UV light to eliminate microbes in high-traffic areas, increasing the cleanliness of the airport.

Here’s the robotic scrubber in action.

Thanks for visiting Stuck at the Airport. Subscribe to get daily travel tidbits. And follow me on Twitter at @hbaskas and Instagram.