From a Wall Street Journal article:

Airport shuttle tracking amounts to a big “it’sabout time” for frequent travelers. Hotel companies are playing catch-up on otherconnected functions, trying to modernize operations through phone apps.

Marriott International, the largest hotelier, is launching shuttle tracking through its app. Already in use at 15 hotels at four airports, with 200 hotels planned by the end of the year, travelers can watch a van icon move along its route and getan estimated arrival time at your stop, just like waiting for your Uber, Lyft or package delivery.

To read more click on following link: https://www.wsj.com/articles/wheres-that-darn-airport-hotel-van-finally-an-answer-11565170200