The invisible systems that keep trains and cars from colliding
Railroad crossings are essential but often overlooked pieces of infrastructure. This video explores the varying levels of technology used at grade crossings to ensure that trains and road vehicles can coexist safely.
While some crossing mechanisms are relatively simple, others rely on high-tech systems to detect approaching trains. The video examines the reliability of these different approaches, highlighting how engineers manage the inherent hazards posed by the intersection of rail and road transportation.
Source: How Railroad Crossings Work
