Officers were called at 11:07hrs on Thursday, 12 October to Sandy Lane at the junction with Harrowdene Gardens.
A pedestrian was reported to have been in a collision with a car.
Police Officers, LAS and LFB attended the scene.
The pedestrian, a woman in her later 70s, has been taken to hospital in a serious condition. She is due to have surgery today.
The driver of the car stopped at the scene, they have not been arrested.