The South Central Railway in Hyderabad has introduced 1,120 fog pass devices to improve train operations during foggy weather. This move aims to reduce delays and enhance passenger safety. The device is GPS-based and helps loco pilots navigate through dense fog conditions. It provides real-time information through display and voice guidance about fixed landmarks such as signals, level crossing gates, speed restrictions, and neutral sections. The device is suitable for all types of sections and locomotives, and it is portable and easy to carry for loco pilots.