 Later in 2011, plans were announced for the merger of the Great Western Ambulance Service with South Western Ambulance Service (SWASFT) and on 1 February 2013, all of the Great Western Ambulance Services' area, vehicles and staff were transferred over to SWASFT.Great Western Ambulance Service's Wiltshire branch was a member of the WES project, a collaboration of emergency services in Wiltshire which ran from 1998 until the early 2010s.The project saw the construction of the WES building at Wiltshire Police headquarters in Devizes and the relocation of all three emergency services control centres into that one emergency control centre where information could be shared instantly among them.