Dianne Trottier died on Sunday night after being hit by a vehicle the night before in Fredericton. Fredericton police are looking for the driver of a dark vehicle in connection with the accident. (Robin Rowland/CBC)

Fredericton police are still looking for answers after the death of Dianne Trottier, who was struck by a vehicle while crossing a busy intersection in her motorized wheelchair Saturday night.

Some details have started come to light as the police investigation continues, but there are still many questions about how the hit-and-run accident happened.

Trottier, a 33-year-old producer with CBC News, was returning to her hotel from a friend's home at 11:30 p.m. when she was struck.

She died on Sunday night in a Saint John hospital.

Carol Randall, a local historian who uses a wheelchair similar to Trottier's, said the tragedy raised immediate questions for her.

"The first thing that came to my mind was why would a person in a wheelchair be out in the elements on a wet, dark, windy night as in Saturday night?" she said.

A taxi service for wheelchair users is due to launch in the next couple of weeks.

The city's Dial-a-Bus service for disabled people requires registration and advance notice and Trottier was from Toronto.

Fredericton police say it appears the driver did have a green light when the accident happened and Trottier's black wheelchair had no lights or reflectors.

Search continues for driver

Police are still looking for the driver of the vehicle who failed to stop after the accident.

Const. Ralph Currie said police want to know what that person saw or didn't see.

Currie said the vehicle in question likely has a lot of damage to its front end.

"It hasn't been quite determined yet on what we are specifically looking for. We think we know pretty well what we are looking for but we don't want to provide the wrong information at this point," Currie said.

Corner had safety features

Darren Charters, the traffic engineer for the city, said the corner where the accident happened includes cut curbs for wheelchairs and other safety features.

Randall agrees the city's sidewalks and intersections have improved greatly in recent years for people with disabilities.

"Several years ago, nothing was ramped, and then they started to be more aware of it and even now, the new construction, the ramps are better," Randall said.

"But it takes a while for the city to catch up and improve the old ramps with new ones."