Delays of up to 45 minutes on First Great Western between Oxford and London Paddington due to problem with lineside equipment at Oxford.
First Great Western advise that a normal service is expected to resume by about 3pm. Also affecting Chiltern Railways and CrossCountry.
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The Orkney Islands took second place, followed by Rutland and Wychavon while last year's winner Winchester falls to fifth place.
With more people in the UK living in temporary accommodation, parts of England will soon trial a scheme which has tackled the problem.
Forecast for tonight and tomorrow in the west