Question to the Department for Transport:

To ask the Secretary of State for Transport, what average number of pilings per night was achieved by Network Rail's High Output Plant System train during (a) October to December 2014, (b) January to March 2015 and (c) April to June 2015.

The following information has been provided by Network Rail:

The average number of pilings per shift achieved by Network Rail’s High Output Plant System train during

• October to December 2014 was 5.0 piles per shift

• January to March 2015 was 4.6 piles per shift

• April to 5 June 2015 was 6.8 piles per shift.