Durham Regional Police say sometime at around 2:45 a.m. the woman's car smashed through a metal fence that separates a dead-end road from the CN railway tracks that run south of Highway 401.
Police believe the driver was heading north on Squires Beach Road, which comes to a dead end just south of the railway tracks. Police say the car smashed through a metal fence, rolled across three sets of railway tracks and came to a stop after striking a telephone pole.
Police were called to the scene after a driver travelling on Highway 401 west of Westney Road spotted a vehicle in the ditch with its lights on.
When officers arrived, they found the 2012 Hyundai abandoned with its airbags deployed. Initially police could not locate the driver. After ordering a halt on train traffic in the area, police searched the site using K-9 units. Police found the driver huddled under a bush about 500 metres from the crash site. Police say she had been the only occupant of the car and was suffering from exposure to the cold.
Sgt. Bill Calder told CBC News the driver is lucky to be alive after driving her car across three sets of train tracks and surviving the frigid conditions outside.
"If we had not found her, the elements would have taken a toll on her," he said. She was treated in hospital for minor injuries and hypothermia.
Police are continuing to investigate and believe alcohol was a factor in the collision.
Anyone with new information about the investigation is asked to call Cnst. Campbell of DRP's West Division at 1-888-579-1520 ext. 2521