The Department for Transport and HM Treasury have announced a massive investment in transport network improvements for England for the coming years.

Ahead of the announcement of this year's Autumn Statement, the government has committed to a significant increase in transport infrastructure budgets, with the present level of investment being tripled to £15 billion between now and the end of the decade.

Aimed at delivering a massive boost to local economies and ensure the nation's roads are fit to meet the needs of 21st century travellers, the money will be invested in more than 100 transport schemes across England – 84 of which are entirely new projects not previously in the development pipeline.

The government's new Roads Investment Strategy will provide an additional 1,300 miles of carriageway for the nation's motorways and major trunk roads during the course of this and the next parliament, with the goal of reducing present levels of congestion across many parts of the country and fixing some of the most serious and longstanding issues in terms of poorly optimised transport infrastructure.

Overall, 90 per cent of journeys by UK road users are carried out on these routes and therefore a focus on streamlining junctions, carriageways and intersections will play a major part in ensuring individuals and businesses are able to complete their journeys in the most swift and efficient manner in the years ahead.

Transport secretary Patrick McLoughlin commented: "I am setting out the biggest, boldest and most far-reaching roads programme for decades. It will dramatically improve our road network and unlock Britain's economic potential.

"Roads are key to our nation's prosperity. For too long they have suffered from under-investment.

"This government has a long-term plan to secure the country's future and this £15 billion roads programme is demonstration of that. Better roads allow us to travel freely, creating jobs and opportunities, benefiting hardworking families across the country."

Chancellor of the Exchequer George Osborne added: "Our plans will transform some of the country's most important strategic routes, with ambitious projects to dual the A303, A1, A27 and the A47 as well as spending on important local infrastructure – boosting productivity and helping local economies."

Examples of major projects that will be delivered as part of the Roads Investment Strategy include a £1.5 billion commitment to the rollout of new smart motorways, providing better links between major cities such as London, Birmingham and Manchester.

Meanwhile, £2 billion is to be invested into the dualling of the entire length of the A303 and A358 in the south-west, while 12 major projects have been created that will aim to improve connectivity to the nation's major international gateways, including a new scheme to boost transport links to the Port of Liverpool.

Elsewhere, the north-east is to benefit from £290 million for the dualling of the A1 all the way from London to Ellingham, while a major investment in additional capacity for transpennine travellers will also be delivered through improvements to the M62 between Manchester and Leeds.