Andrews heckled as Vic campaign rolls on

He declined to respond after a witness to the crash told the Herald Sun she couldn't remember Mr Andrews or his wife Catherine helping the injured boy as he lay on the ground.

"I have addressed these issues at length," the premier told reporters.

Ms Andrews, who was driving at the time of the crash, said it was a traumatic incident but also declined to comment further.

"It was a terrible thing. So traumatic for everyone involved," she said.

"Our kids were really little. Joseph was only five. Daniel's spoken about this, I've spoken about this and I'm going to leave it there."

It comes as a legal stoush over an Independent Broad-based Anti-corruption Commission draft report also casts a pall over the campaign.

The corruption watchdog has secured an injunction to prevent the publication of any information within the proposed report by Nine newspaper The Age.

In 2014, Mr Andrews said it was "always a concern when the media is unable to publish a story they believe to be in the public interest" after a gag order was granted on reporting of the Lawyer X scandal.

He confirmed those comments were accurate on Friday after announcing $13.4 million to build six dog parks and being heckled by a passer-by at a dog park in Caulfield.

"You're a disgrace," the man yelled to the premier.

On the hustings in Melbourne's west Liberal leader Matthew Guy pledged an additional 45 bus routes over four years in built-up areas.

Another 20 would be reviewed for further expansion under the $160 million plan.

"Places where I'm from, like the City of Manningham, don't have any trams or trains," he told reporters in Sunbury on Friday.

"And in the outer suburbs of Melbourne in particular, and regional Victoria, the same exists. So we need to invest in our bus networks."

Public transport has been a key feature of the Victorian election campaign, with the coalition and Labor both promising cheaper regional train fares.

Victorians head to the polls on November 26.