(23 Jan 2015, 5:57 pm)Robert wrote The fact that St James' is positioned in the notice before a station at the coast and also after a station at the coast suggests that one delay is for 1 direction and the other delay is for the other direction.
The trains will have layover at each end (St. James and South Shields), and I assume this will be around 10 minutes, hence allowing the opportunity for time to be made up when heading out of St. James.