The improvement work will start on the eastbound carriageway on Monday and will continue until Friday when it will switch to the westbound carriageway until 22nd February. It will be carried out each night between 10pm and 6am.
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Tuesday afternoon's forecast for the west of the region
A serious case review into the exploitation of young people in Oxford has documented a catalogue of failures by police and social services.
Oxfordshire Safeguarding Children's Board has apologised over the time it took to investigate child exploitation in the county.