reporter: 14-year-old anna stickle and a friend were taking a popular short cut across these train tracks. when a speeding train approached, anna didn t hear it in time to get away. i ve lost my daughter. i ve lost my best friend. she truly was my best friend. and she s gone. reporter: with her daughter s funeral behind her, tara stickle turned her attention to wjz, about these tracks, where trains, like the one that killed her daughter, speeds by at 100 miles an hour. you can t hear it. it s too late, once they are on the tracks. they are fast and the kids don t realize it. reporter: the track separates several neighborhoods from the local schools. and even today, our cameras spotted kids crossing them. this is the worst possible place for railroad tracks. we can t move the tracks. we can t move the homes. but we can offer these kids an alternative. and that alternative is anna s bridge. reporter: she proposes a bridge be built over the tracks, giving kids a sa