The Western Line of the Mumbai Suburban Railway is a public transit system serving Mumbai Metropolitan Region, Maharashtra. It consists of 36 stations from Dahanu Road to Churchgate railway station. It is operated by Western Railways (WR). The entire line is at grade. Trains are differentiated as slow and fast locals. Slow trains stop at all stations, while fast ones stop at important stations only and are preferable over longer distances. Trains usually start from and terminate at important stations. Sections in Churchgate railway station to Virar railway station is in Quadruple track An EMU car shed has been built between Nala Sopara and Virar which is the largest car shed in Asia. A repair shop for EMUs is situated at Mahalaxmi. There are also EMU car sheds at Mumbai Central and Kandivali.