Police say alcohol, speed or distraction don't seem to have been factors in the accident. The driver remained at the scene and is cooperating with police, they said.
"Police remind all members of the public to use caution in the darker winter driver conditions and further urge those out walking to wear bright clothing and take an extra second to ensure they can safely cross the street," said Cpl. Stephanie Ashton in a statement issued on Sunday evening.
The woman was the second killed in a traffic accident in Richmond on the weekend and the seventh traffic fatality this year.
On Saturday evening a 76-year-old man was killed at the intersection of Westminster Highway and Number 4 Road.