Frequent travelers are about to become even more frequent travelers, according to our annual business travel survey. (frequentbusinesstraveler.com)
One recent travel survey even found that flight searches for solo travellers had risen 18 % on 2016. (onthegotours.com)
These indicators are «relatively straightforward to capture with a combination of census data, regional travel surveys, and on - board (commuter) surveys,» the researchers write. (sciencedaily.com)