the single line sections is protected additionally by SPAD indicators. Signal boxes controlling the line are; Cambridge power box Littleport Downham Market Magdalen Road (Watlington) King's Lynn The signalling system is Track circuit block with multiple aspect colour light signals- with the exception of: one semaphore signal at King's Lynn which controls entry to the One Train In Section freight-only line from King's Lynn to two semaphore shunt signals at station On 19/11/2020, the Department of Transport announced funding to renew the Signalling on the Fen Line to ETCS Cab Signalling. Infrastructure Traction current for electric trains is provided by 25 kV AC OHLE controlled by Romford Electrical Control Room. There are Neutral Sections at Shepreth Branch junction, Milton Fen and just north of Littleport bypass. The line has a loading gauge of W8 except for the section connecting the Ipswich–Ely line to the Ely–Peterborough line, which is W10. Passenger volume These are the statistics of the numbers of passengers on the line from the year beginning April 2002 to the year beginning April 2017. Comparing each station between the first and last years (14 years total), King's Lynn has increased by 68%, Watlington by 133%, Downham Market by 111%, Littleport by 157%, Ely by 113%, Waterbeach by 149% and Cambridge by 109%. Cambridge North did not open at the publication of these previous figures. References Further reading External links Fen Line Users Association (FLUA) Norfolk Railway Society Rail transport in Cambridgeshire Rail transport in Norfolk Railway lines in the East of England King's Lynn and West Norfolk Rail transport in Cambridge