The government is investing a record $50 billion on national infrastructure over five years to the end of the decade.

In a statement to parliament on Thursday, Prime Minister Malcolm Turnbull will give an update on progress in delivering national infrastructure.

He will outline the government’s response to Infrastructure Australia’s landmark 15-year plan.

A spokeswoman for Mr Turnbull said that response would confirm the plan would guide the government’s infrastructure policy directions.

Top funding priorities are national land transport projects including inland rail ($893.7 million), Northern Australia roads ($600 million) and beef roads ($100 million).

It will also commit to a series of reforms to be delivered through partnerships across governments and the private sector to improve infrastructure planning and decisions.

Those will encourage well-regulated infrastructure markets, providing better services, harnessing innovation and technology and boosting investment across.

The government is supporting 69 of 78 IA recommendations.

It has has already committed funding towards 14 of 15 projects on the IA priority list, including Inland Rail, WestConnex in NSW, and the Forrestfield Airport Link in Western Australia.

“We will continue to work with state and territory governments to develop further initiatives on the priority list that meet our national priorities and deliver the greatest national benefit,” the spokeswoman said.