Japanese-Singapore team to build tunnels under Changi T5

An air traffic control tower at Changi Airport (Davidgn/Dreamstime) A joint venture of Japan’s Penta-Ocean Construction Company and Singapore’s Koh Brothers Building & Civil Engineering has won a $780m contract to build connecting tunnels under terminal five at Singapore’s Changi Airport. The intra-terminal tunnels will transfer passengers and baggage. A series of sub-tunnels will also […]