The Haramain High Speed Rail project also known as the "Western Railway" or "Makkah-Medina high speed railway", is a 453.0 kilometres (281.5 mi) (449.2 kilometres of main line, plus a branch connection to KAIA airport: 3.75) high-speed inter-city rail transport system under construction in Saudi Arabia. It will link the Muslim holy cities of Medina and Mecca via King Abdullah Economic City, Rabigh, Jeddah, and King Abdulaziz International Airport.