A closer look

New York City subway trains operate using an incredibly outdated analog signaling system from the 1930s that relies on cloth-covered wiring and physical mechanical switches that are literally older than the grandparents of the people riding the trains. When parts break down, transit workers often have to manufacture replacement components themselves in a machine shop because the original companies that built them went bankrupt decades ago. The entire subterranean network is a fragile museum of pre-WWII technology miraculously kept alive by duct tape and sheer stubbornness. So when the automated voice apologizes for train traffic ahead, it actually means a Depression-era copper wire finally snapped and thousands of furious commuters are now legally trapped in a rat-infested tunnel indefinitely