Serving the communities of Avon (Bath and North East Somerset, Bristol, North Somerset, South Gloucestershire) Great Western Ambulance Service NHS Trust (GWAS) provides accident & emergency (999) and urgent care, patient transport service (PTS) and out-of-hours service. - Accident & Emergency (A&E) Medical emergencies happen at all times of the day and night. GWAS operates a 24-hour clinical response to 999 calls to ensure patients receive the right care as quickly as possible – wherever and whenever they need it. - Patient Transport Service (PTS) Our Patient Transport Services teams provide pre-arranged transport for patients to and from hospital appointments, between healthcare providers and when they are returning home after spending time in hospital. - Out of Hours (OOH) On behalf of GPs in Gloucestershire, GWAS runs the Out-of-Hours doctor service across the county. The out-of-hours telephone number covers all patients registered with a doctor's surgery in Gloucestershire and is a service run by dedicated staff including doctors, paramedics, nurses, control assistants, dispatchers and drivers.