By Neville Judd At a busy surface mine, small inefficiencies can become expensive ones. A truck sent to the wrong destination, unnecessary travel, excessive idling, or queues at loading and dumping points can each affect productivity. Multiplied across a fleet and across every shift, their impact grows quickly. At the Tujuh Bukit Gold Mine in Banyuwangi, East Java, PT Bumi Suksesindo (BSI), a subsidiary of PT Merdeka Copper Gold Tbk, wanted greater consistency in fleet productivity from one shift to the next. The operation is one of Indonesia’s largest gold mines and Merdeka’s flagship asset. Since beginning operations in 2016,…