ALTA Integra - a multidisciplinary consultancy with a sustainable approach in engineering and designing innovative solutions - was called to develop a new lighting concept for the Cathedral’s towers. Principal at ALTA Integra, Herwin Gunawan explains the philosophy behind the selected lighting design: "When there was no electricity, bells were a direct and easy communication tool. Alternative codes were used to deliver messages either of joy, danger, or mourning to the population. Part of the everyday communication system, three bell tolls invited worshippers to the Sunday Mass, five tolls evoked a happy event, and so on. The unavoidable urban development, with the related noise pollution typical of a big city, deteriorated the capacity of sending clear messages through the bell sound. Answering to these challenges, we have suggested the use of light as a successful and direct communication medium.”
