2011, allowing the permanent removal of overhead lines around the cathedral. Line 1 of the Tranvía de Zaragoza has also used ACR since its second construction phase was completed in 2013. The use of ACR avoided the installation of overhead lines in the city’s historic centre. ACR was included in the Newcastle Light Rail in Australia and Luxembourg's new tram system. Ansaldo Tramwave Derived from Ansaldo Stream and developed by Italian company Ansaldo STS (which later became Hitachi Rail STS), the Ansaldo TramWave ground-level power supply system successfully entered commercial application in 2017, with the opening of Zhuhai tram Line 1 first phase in China. The tram is the first fully low-floor tram system adopting ground level power supply technology. Later in 2017, Western Suburb Line in Beijing was opened with the same technology from Ansaldo. The technology has been licensed to CRRC Dalian and all the technologies were transferred to China. References External links Electric rail transport Tram technology