Formed on 1 April 2006 by the merger of the
Avon, Gloucestershire and Wiltshire ambulance services, the trust had a difficult start, marked by redundancies, closure of its training centre and the threat of
ambulance station closures; though in the end, only one station was closed, at Newent, Gloucestershire. This caused strained industrial relations with its recognised union,
UNISON, and criticism in local media. From the date of merger, GWAS struggled to achieve the Department of Health's key performance indicators. In 2007–2008 the trust lost two contracts for non-emergency
patient transport services (PTS) to private contractors. Many ambulance shifts were covered by private agencies. In September 2008, the chief executive, Tim Lynch, resigned. He was replaced by an interim chief executive, Anthony Marsh, from West Midlands Ambulance Service. Marsh identified a lack of operational leadership and a "competition of priorities" within management and removed two directors: the director of operations and director of corporate development. In February 2009, a ceremony was held to present almost 60 staff, partner agencies and members of the public with Chief Executive Commendations. In September 2010, a specialist unit, the
Hazardous Area Response Team (HART), was established and went live after months of preparation and training. This unit of 32 paramedics was trained to respond to complex or large incidents involving fire, chemicals, biological or nuclear risks, collapsed buildings, cliff or heights, confined spaces, water or firearms incidents. The GWAS HART was one of the last parts of the national scheme to be established; a base was built for the unit in
Filton, North Bristol. In the summer of 2010, the regional NHS announced that after a competitive tendering process, GWAS had secured the major patient transport service contract for the former Avon area, representing an estimated three-quarters of non-emergency patient journeys in the region. The revamped service, operating 24/7, went live on 1 October 2010. In 2010, the trust board recommended the closure of at least one county's control room, and gave the go-ahead to an "Estates Review" to prepare the trust for closure of local ambulance stations. In 2009, David Whiting, previously director of operations at
East Midlands Ambulance Service, was appointed as Chief Executive. He announced his resignation in November 2010, having served just nineteen months, a situation the union described as "difficult".
Industrial action Whiting's resignation came at the height of an industrial dispute as the trust attempted to adjust rota patterns, rest breaks and shift times, which caused staff to be concerned about safety and welfare of patients and colleagues. In December 2010, the trust announced another interim Chief Executive, Martin Flaherty of the
London Ambulance Service. At the beginning of January 2011, UNISON (the only approved union within GWAS until January 2011, when the
GMB was accepted) announced the results of a ballot for industrial action. From those that voted, the result was 96% in favour of taking industrial action as a form of protest against the changes implemented during 2010.
Successor Later in 2011, plans were announced for the merger of GWAS with
South Western Ambulance Service (SWASFT) and on 1 February 2013, all of the GWAS services, vehicles and staff were transferred over to SWASFT. ==Wiltshire Emergency Services project==