Global air passenger traffic continues to soar to record levels, as in 2018 the total number of air passengers increased by over six per cent to reach 4.3 billion passengers according to ICAO. The continued growth of air passenger traffic has put considerable strain on airport infrastructure, and some of the world’s leading airports are increasingly turning to new technologies in order to help them manage growing passenger volumes, while delivering a high-quality customer experience.
http://internationalairportreview.com/article/110736/how-biometric-services-improve-passenger-experiences-in-airports/