In a move to both improve travel experiences and reduce crowding in security checkpoint lines, Seattle-Tacoma International Airport is trailing a virtual queuing system for TSA screening checkpoints.

The free program called SEA Spot Saver is designed as a virtual app to help people avoid standing in crowded security lines where social distancing is difficult. Travelers can reserve a spot in advance and will be notified when to proceed to a TSA checkpoint.

The airport is also using a new technology called happyhover, where an electronic screen detects fingers hovering above without any physical contact. The new technology will be used on check-in kiosks for a number of airlines.