Looming funding cuts to bus and rail transportation systems and services across much of the U.S. are one factor being pointed to in predictions of a dramatic drop in public transit services. With multi-million-dollar budget deficits in many parts of the country and waning funding support from President Donald Trump’s administration, public transit overall could be facing a major downward spiral, says Steven Polzin, a research professor in the School of Sustainable Engineering and the Built Environment, part of the Fulton Schools, and director the TOMNET University Transportation Center. Polzin talks about factors discouraging ridership and sees more challenges coming.