The rape of a woman aboard a Philadelphia subway witnessed by as many as 10 passengers, some of whom appeared to film the attack, could have been stopped quickly if one had called 911, police said on Tuesday. The woman was raped shortly after 9 p.m. on Oct. 13 on a train run by Southeastern Pennsylvania Transportation Authority (SEPTA), which provides public transportation in Philadelphia, SEPTA Transit Police Chief Thomas Nestel III said. “As many as 10 people actually saw some part of the attack on this rider,” Nestel said on Philadelphia radio station WPHT. Describing police review of surveillance video, Nestel said, “We were watching to see if somebody put a phone up to their ear indicating they might be calling 911. Instead, what we saw was people holding their phone up as if they were recording or taking pictures.” SEPTA issued a statement calling it a “horrendous criminal …