Singapore's Massive Airport Expansion Infrastructure Takes Shape
Changi Airport Group has unveiled an underground people-mover system connecting Terminal 5 and Terminal 2 within four minutes, according to AeroTime on December 30 2025. The automated system will operate similarly to the existing Skytrain, with trains running every four to eight minutes. Each two-carriage train can carry approximately 96 passengers plus luggage. The tunnel progress and engineering are notable aspects of this massive airport expansion infrastructure.