A decision to ban motorcycling at a popular Perth race circuit over safety concerns has been welcomed by the family of a young man killed on the track.

There has been growing concern about safety and inadequate run-off areas for motorbikes at Barbagallo Raceway, in Perth's northern suburbs.

Over the weekend, Chris Adley, 21, became the sixth person to die from a motorcycle accident at the Wanneroo circuit in 16 years.

A safety audit of Barbagallo was ordered in June and the results were handed over to the Department of Sport and Recreation on Friday — the day before Mr Adley's death.

The WA Sporting Car Club, which runs the track, said the department has advised it was in the club's "best interests" to stop all motorcycle activity at the track indefinitely.

The department has no statutory power to enforce that position, but the car club says it is taking the recommendation seriously.

It is understood a number of events scheduled for this weekend have been cancelled.

'Honour and respect my son'

Scott Elliott's son Cameron died at the track in a motorcycle accident in 2009, and he spearheaded a campaign for safety improvements.

"If you lose one of your children, it tends to create a drive inside you to have something positive come out of your child's death," he said.

Motorcyclist Daniel Chadbund (front) died after he was thrown from his bike in April. ( Supplied: Luke Nieuwhof )

Mr Elliott was riding behind his son Cameron in 2009 and watched in horror as his body was flung into a solid barrier.

Mr Elliott claims the Barbagallo Raceway does not meet international safety standards for motorcycle racing and he has spent years campaigning for changes.

"To honour and respect my son, that he was a real person … and he existed and he had a lot of offer," he said.

"He was an intelligent young man, a smart young man and he was nice to his mum."

Mr Elliot said he believed the track could open again.

"This will bring about some much needed change, so there will be some renovation work done to make the high-risk areas and the extreme-risk areas safe," Mr Elliott said.

"So it's going to be a period of inconvenience for several months probably, and then the track will be re-opened and we'll have a safe circuit to ride on."

Motorcycling Western Australia issued a statement welcoming the report, saying the races would be cancelled while it assessed the findings.

'Extreme risks' at track

Department of Sport and Recreation director general Ron Alexander said the report found there were "extreme risks" at the track.

Mr Chalmers said he received the report on Monday and immediately notified Worksafe and all stakeholders.

"The report was commissioned because we were concerned that people were getting hurt at the track," he said.

"The report says there were extreme risks at the track and so we passed it on to the people that are regulating the track to do something about it."

The audit suggested extra barriers and run-offs could be installed at the track, but Mr Alexander was non-committal about the future of the raceway and its prospects for re-opening to motorcycle racing.