Planet China: Eleventh in a series about how Beijing’s trillion-dollar development plan is reshaping the globe—and the natural world. CHANCAY, Peru—The elevator doors leading to the fifth-floor control center open like stage curtains onto a theater-sized screen. This “Operations Productivity Dashboard” instantaneously displays a battery of data: vehicle locations, shipping times, entry times, loading data, unloading data, efficiency statistics. Most striking, though, are the bold lines...