Yeah, I live about 15 miles outside Philly and don't know anywhere nearby safe enough to ride. Local drivers think nothing of missing you by only a foot or two, often at a speed difference of over 20 MPH.

Even offroad spaces set aside for bike routes often cross busy highways without proper signage, putting riders and pedestrians in the crosshairs of fast turning vehicles that are surprised to find anyone on the road who's not motorized. With the rise of big big SUVs and even bigger trucks, those who are not likewise encased in a large metal cage are just too easy to miss. Or hit.