Black Ice Sends Cars Crashing Down Hill Pittsburgh, Pennsylvania — February 12, 2024 A steep residential street in Pittsburgh was turned into a terrifying bobsled run Monday morning, as a nearly invisible layer of black ice sent multiple vehicles, including a large box truck, sliding into a chaotic pile-up. The entire nerve-wracking sequence was caught on video by a resident watching from a window above the street. The mayhem begins with a red sedan, which loses all traction and starts sliding h