Complex sentence: This requires the Guard to return to a vacant cab at each station to carry out these duties, examples of this include Chiltern Railways services north of Banbury or First Great Western services on the Cotswolds Line.
Split into simpler sentences: This requires the Guard to return to a vacant cab at each station to carry out these duties. Examples of this include Chiltern Railways services north of Banbury or First Great Western services on the Cotswolds Line.