https://www.post-gazette.com/news/transportation/2020/01/17/Port-Authority-cellphone-app-for-bus-fares-to-be-tested/stories/202001170134
https://www.post-gazette.com/news/transportation/2020/01/17/Port-Authority-cellphone-app-for-bus-fares-to-be-tested/stories/202001170134