The woman in her 40s was rushed to Canberra Hospital after a collision on the corner of Southern Cross Drive and Ratcliffe Crescent at Florey between her and a car.

She had multiple injuries and needed to be stabilised at the scene of the crash before the ambulance drove her to hospital.

Late on Saturday night, she was no longer classed as being in a critical condition, according to an ACT Health spokeswoman, and had improved to the point where she could be regarded as being in a serious but stable state.

A man in the car was also taken to hospital with minor injuries.

ACT Policing is seeking witnesses to the accident.

Police received a call about the crash at 4pm.

ACT Policing's collision investigation and reconstruction team are currently investigating the incident.

The crash happened a little more than a kilometre east from where a Macgregor man was killed in an accident almost a year ago.

The accident in May 2012 happened at the intersection of Southern Cross Drive and Florey Drive when a car collided with a light truck.

Photos of Saturday afternoon's crash scene after the accident show glass on the road, a riderless red motorcycle lying on the bitumen and an empty helmet sitting metres away.

As reported previously, ACT Policing's records show 50 per cent of accidents in the ACT in the five years to mid-2012 happen at intersections.

A month ago, an O'Connor man, 84, was killed in a two-car collision at a large intersection a couple of suburbs away, in Bruce.

Already at least one ACT life has been taken by a crash this year.

In February, a 27-year-old man from Holt was killed by a high-speed crash on the Barton Highway on Friday afternoon, at a slight bend in the road.

Any witnesses to the collision who have not yet spoken to police are urged to contact ACT Policing Operations on 131-444.

Alternatively, they can call Crime Stoppers on 1800 333 000, or via their website.