Mecca kilometer elevated metro transports pilgrims to holy sites Mount Arafat, Muzdalifah and Mina in the city during hajj reducing the congestion on the roads. Mecca Metro, officially known as Makkah Mass Rail Transit, is a planned four-line metro system for the city. This will be in addition to the Al Mashaaer Al Mugaddassah Metro which carries pilgrims during Hajj. A high speed inter-city rail line (Haramain High Speed Rail Project also known as the "Western Railway"), is under construction in Saudi Arabia. It will link along 444 kilometres (276 mi), the Muslim holy cities of Medina and Mecca via King
Mecca or "Makkatu l-Mukarramah" (, ), which means "Mecca the Honored", but is also loosely translated as "The Holy City of Mecca". The ancient or early name for the site of Mecca is "Bakkah" (, also transliterated Baca, Baka, Bakah, Bakka, Becca, Bekka, etc.). An Arabic language word, its etymology, like that of Mecca, is obscure. Widely believed to be a synonym for Mecca, it is said to be more specifically the early name for the valley located therein, while Muslim scholars generally use it to refer to the sacred area of the city that immediately surrounds and includes the "Ka‘bah"