;Labor Party policy During its 16 years in office until it lost office in the
March 2018 state elections, the
Labor government had announced plans for Adelaide's public transport only to drop them from a later budget. In the 2008 budget, as part of a planned electrification of the
Outer Harbor and
Grange railway lines, new
tram-trains were proposed to run on existing railway lines to
West Lakes,
Port Adelaide and
Semaphore. Electrification of the Outer Harbor railway line was to commence in 2010–11 and "once connected to the tram network, will enable future extensions of light rail services to West Lakes, Semaphore and Port Adelaide". However, the plans were abandoned in the 2012 state budget. As at 2019 the railway line had not been electrified, hence no tram-trains were operating. In 2016 the government released a report detailing an ambitious tramways network, branded as "AdeLINK". Five routes would radiate from a new city centre loop: • an eastern route to
Magill • a northern route to
Kilburn • a southern route to either
Mitcham or
Daw Park • a western route to
Adelaide Airport • a number of north-western routes. A loop in the CBD, to be called CityLINK, was also included. The PortLINK proposal included replacement of the existing diesel-traction
Outer Harbor railway line's heavy rail service with electrified
light rail, repeating the abandoned 2008 proposal to extend to West Lakes, Port Adelaide and Semaphore. In the face of criticism, the
transport minister in December 2016 blamed the
Liberal federal government's lack of support of state public transport for the stalled investment in the Adelaide tramway system, saying his party "had a commitment from the federal opposition that had they won at the recent federal election they would have committed half a billion dollars to expanding the network." A
motorists' organisation travel-time survey identified increasing tram traffic as a major contributor to congestion on three major Adelaide roads; it called for the government's Integrated Transport and Land Use Plan to include the effect of increased tram services to address population growth, encourage the use of public transport, and consider its effect on motorists and what was needed to mitigate it. In the campaign for the March 2018 state elections, another Labor proposal – taken from its 2015 plan for projecting tram services along The Parade (Norwood), Unley Road, Prospect Road, and via Henley Beach Road to Adelaide Airport – was to build the line to Norwood, the electorate of the opposition leader. This would involve a 3 km (1.9 mi) line from the East End of Adelaide through Kent Town and the purchase of four new trams at a total cost of $259 million. Nevertheless, the Liberal Party described its over-all public transport plan (of which tramways are a part) as "designed to make Adelaide’s public transport the equal of similar sized cities anywhere in the world". The manifesto included plans for two new tram routes, both similar to those included in earlier plans by the Labor party: • a route from the eastern end of North Terrace through the eastern half of the city then west along
Angas Street and
Gouger Street • an extension from North Terrace to O'Connell Street,
North Adelaide. The manifesto also included pledges to: • set up an independent body, Infrastructure South Australia, to provide a strategic approach to infrastructure planning and development in order to lift economic productivity and to make "transparent" decisions that are not based on "short-term political imperatives" • submit the proposed tram service routes for a comprehensive assessment by Infrastructure South Australia • remove public transport operations from the large
Department of Planning, Transport and Infrastructure by creating the South Australian Public Transport Authority; DPTI would continue to be responsible for infrastructure delivery, and Infrastructure South Australia for public transport infrastructure planning ==Developments since the 2018 election==