Footage has emerged of the frightening moment a woman opened her car door and hit a cyclist just before he was killed by an oncoming truck in Melbourne.

Tributes have flowed for the Italian-born man, while the tragedy has prompted calls to ban parking altogether on Sydney Road in Brunswick.

The 25-year-old man was thrown from his bike and under a truck after he hit the woman’s car door.

Bystanders, including a police officer, ran to help the 25-year-old and performed CPR.

However, the young man died on the road where moments before he had been riding towards the city with his girlfriend just ahead of him.

A man believed to be the truck driver involved left flowers at the scene this morning.

But as tributes grew at the scene, cyclists have grown angry at the preventable tragedy.

They have urged motorists to take their time and be more careful on the roads.

Police have interviewed the woman who opened her car door, and as investigations continue, she may face charges.

Kenny Smith, who works on Sydney Road, has started a petition to remove parking between Barkly and Western Streets – and already hundreds of supporters have signed.

VicRoads said it would review the petition's proposal.

This month, the State Government announced it would spend $1.6 million on safety improvements along Sydney Road.

Work will start in August to extend the bike lanes and relocate car parking to improve sight lines, but Mr Smith said it was not enough.

“People should be able to cycle to the shops and not be in danger for their life,” he said.

The cyclist's death on Sydney Road in Brunswick has sparked passionate debate.

Tributes have been left at the site.