X'Trapolis 100

The X'Trapolis 100 is a type of single deck electric multiple unit, part of Alstom's X'Trapolis family of trains, operated in Melbourne, Victoria, Australia and in Valparaíso, Chile. As a partner of the Melbourne Transport Enterprises consortium, the new operator of the Hillside Trains network, later Connex Melbourne, Alstom announced in 1999 that it would supply new trains to the network. When the trains were originally introduced to the suburban network in 2002 they operated only on the former Hillside Trains network, the Burnley and Clifton Hill group lines. On 22 October 2014 operation was expanded to the former Bayside Trains network, with the Frankston line cleared and initially running two weekday morning-peak services; on 20 November 2016 they expanded to full-time running on the Frankston line and began services on the Werribee and Williamstown lines, and in November 2018 operation was expanded to the Flemington Racecourse line. Although Melbourne's trains operate as one or two three-car units, it was not until September 2007 that the X'Trapolis 100s were permitted to operate as single units in revenue service. The trains have power-operated doors that open when a button on the door is pressed and external destination displays on the sides of the carriages.