An elderly driver was trying to park a Ford Focus sedan near the polling booth at Maroondah Sports Club on Mt Dandenong Road in Ringwood East about 1pm when she hit a pedestrian.
Witnesses rushed to help the pedestrian, a 43-year-old Ringwood woman, who has been taken to the Royal Melbourne Hospital in a stable condition.
Her injuries are believed to be minor, according to Ambulance Victoria.
The driver, an 89-year-old Croydon woman, was taken to Maroondah Hospital in a stable condition.
Police have said she will undergo a license review.
A man who was at the scene of the crash has told 3AW radio “it was a horrible scene”.