New figures show Britain’s motorway network has grown by just 54 miles since David Cameron became Prime Minister in 2010.
This compares with a growth of 191 miles during the seven-year tenure of the previous Conservative prime minister, Sir John Major.
But both figures are an improvement on the amount of growth during Gordon Brown’s three-year stint in Downing Street, which was statistically zero.
The latest data from the Department for Transport comes after Mr Cameron visited the region last month to see work taking place to create the £124.5m Heysham to M6 link road, which will join the Heysham bypass with junction 34 of the M6 motorway.
The work started in January last year and it is expected to be opened in summer 2016.
As part of the work, Torrisholme Road in Morecambe will be closed from Friday, between Russell Drive and Endsleigh Grove. It is due to reopen next Monday.
The new figures also show Britain’s motorway grew by three miles during 2014, along with 22 new miles of A-roads.
In total, the number of miles of road in Britain increased in 2014 by 99 to 245,827.
This compares with 244,978 in 2010, of which 2,211 (0.9 per cent) were motorways.
A century ago in 1914, Britain’s road network was 176,993 miles in length - 72 per cent of the size it was in 2014.
The prime minister to have presided over the biggest growth in the motorway network is Labour’s Harold Wilson. During his stints as premier, from 1964 to 1970 and 1974 to 1976, Britain acquired 537 miles of new motorway.
The second highest total occurred under the four-year term of Conservative prime minister Edward Heath - an increase of 504 miles.