Barton line
The eastern portion of the route as far as Habrough is shared with the South Humberside Main Line to Doncaster and Lincoln, whilst the short section either side of Ulceby also forms part of the busy freight artery between Brocklesby and the Port of Immingham.West of Ulceby the line is double as far as Oxmarsh Crossing (near New Holland), reverting to single for the final 3+1⁄4 miles (5.2 km) to the terminus at Barton.The line was particularly busy during the Second World War, as it served Royal Air Force airfields at Goxhill and Killingholme in addition to the various industrial installations in the area.The service ran hourly until the spring of 1990, but was cut to the current two-hourly pattern at that year's timetable change by British Rail due to unreliability and a shortage of rolling stock.The winter Sunday service also suffered the same fate in 1999 following the abolition of Humberside County Council and subsequent withdrawal of funding by the replacement unitary authorities.