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Pennsylvania ( KYW ) -- With no new contract talks scheduled between SEPTA and its largest union, TWU Local 234, riders who depend on public transit say they are increasingly anxious about how they will get around if workers walk off the job.

SEPTA has urged riders to prepare for alternate transportation options, warning that a strike would shut down all bus, train, and trolley service.

For Clinton Mumford, who relies exclusively on SEPTA buses and trains, even a short strike would be devastating.

"We got a lot to lose," Mumford said. "I got programs I gotta get to…If I don't take [SEPTA], I gotta take an Uber. And then I gotta dig down deep into my pockets."

Other riders told CBS News Philadelphia they are already trying to make backup plans, un

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