Federal safety officials investigating a Chicago commuter train crash that injured nearly 40 people when it slammed into snow-removal equipment are focusing on a “design problem” with its braking system.
National Transportation Safety Board Chairperson Jennifer Homendy said the Chicago Transit Authority train was traveling at 26.9 mph (43.3 kilometers per mile) on Thursday when it struck the snow-removal equipment, which was on the tracks conducting training for the winter season.
