Real-time arrival information can significantly enhance the usability of public transit systems. OneBusAway provides such information to more
than 7,000 Seattle-area bus riders’ mobile devices every day.
Ferris, B., Watkins, K., and Borning, A. (2010) “Location-Aware Tools for Improving Public Transit Usability.” IEEE Pervasive Computing. Vol. 9, no. 1, pp. 13-19. Jan-Mar 2010.