freight routes are the Main Southern and Main North lines, with the Illawarra and Main Western lines serving lineside industries and as alternate interstate routes. In the inner city area the Metropolitan Goods lines connects major freight terminals to the main passenger lines and the Southern Sydney Freight Line which runs parallel to the Main South line from the western end of the Metropolitan Goods lines to a point beyond the end of suburban services. As of 2013, construction of the Northern Sydney Freight Corridor is under way. This is a series of projects along the Main Northern line between Sydney and Newcastle aimed at increasing the number of freight trains operating along the route. The main traffic is containerised freight. The main intermodal terminals are at Enfield, Moorebank (under construction), Yennora and Minto. Interstate trains to Sydney terminals are up to 1500 metres long, while short-haul container trains from the terminals to the Port Botany seaport are around 600 metres long. Coal services to Port Kembla are another major traffic. Freight operators include Crawfords Freightlines, Southern Shorthaul Railroad, Pacific National, Qube Holdings and SCT Logistics. Trams and light rail Sydney once had the Southern Hemisphere's largest tram network. Patronage peaked in 1945 at 405 million passenger journeys. The system was in place from 1861 until its winding down in the 1950s and eventual closure in 1961. It had a maximum street mileage of 291 km (181 miles) in 1923. A short heritage tramway operated by the Sydney Tramway Museum has linked Loftus railway station and the Royal National Park since the 1990s. In 1997, a short light rail line between Central and Pyrmont opened, now known as the Dulwich Hill Line. The line was extended twice and is now 12.8 km long. A second line, passing through Sydney's CBD from Circular Quay to Randwick and Kingsford opened in stages between December 2019 and April 2020. There is also a planned line running from Westmead station to Carlingford via Parramatta station, reusing part of the old single tracked Carlingford line. The line is due to open in May 2024. A second line is also proposed to branch from Camelia to Strathfield via Sydney Olympic Park. The Parramatta light rail lines will have no connection to the Inner West light rail or the CBD and South East light rail lines. Punctuality The punctuality of Sydney's rail network has been highlighted, and