The father of 23-year-old Sarah Frazer, killed on the Hume Highway in February, said he could only feel "sadness" for the family of the man charged over her death.
Kaine Daniel Barnett, of Marulan, faced two counts of dangerous driving occasioning death and negligent driving occasioning death when he appeared in Moss Vale Local Court on May 8 over the deaths of Springwood resident Sarah and tow truck driver Geoff Clark on February 15.
The Department of Public Prosecutions (DPP) requested the matter be adjourned "because of the size of the brief" and the 24-year-old is due to face court again on June 26.
Sarah's father Peter said outside the court the circumstances had left all families involved "broken hearted".
"It's affected all the families, including Kaine's family," he said.
"I have a 24-year-old as well. All I can feel is sadness."
Geoff and Sarah died when they were hit by a passing truck on the highway near Mittagong on February 15.
Sarah's car had broken down and Geoff had stopped to help.
Peter said the court appearance was the beginning of a long process of finding out what happened on the day of the incident so future tragedies could be avoided.
"It's a very, very difficult time for the Clark and the Frazer families," he said.
"She (Sarah) was a beautiful, vibrant young woman who died in a very tragic circumstance."
The Frazers, Geoff's widow Samantha and their four children delivered a petition containing 23,000 signatures to acting premier Andrew Stoner at NSW Parliament House on May 15, marking three months since Sarah and Geoff's deaths (see related story).
The petition called for all major roads, highways and freeways to have standard breakdown lanes or road shoulders, as well as new legislation requiring drivers to slow down and move over when passing any first-response and emergency service personnel displaying hazard or emergency lights.
"We can see that this is something which has touched everyone's heart and we want to make a difference for all Australians," Peter said.
A week-long awareness campaign began from Mother's Day, with motorists encouraged to tie a yellow ribbon on the aerial or bumper bar of their vehicles to promote road safety.