The woman, aged 18, is believed to have stepped into the path of a bus travelling about 40km/h on the Princes Highway about 1.30pm Tuesday. 

She flew into the front of the bus, cracking the windscreen in front of the driver, but was spared from going under the wheels. 

The bus remains stopped at the crash site. 

NSW Ambulance paramedics are with the woman and are in the process of loading her into an ambulance. 

She is conscious and breathing and complaining of pain to her right shoulder.

She is expected to be transported to Wollongong Hospital. 

The collision occurred in one of three southbound lanes, about 100 metres north of Ajax Avenue. 

Traffic is unaffected, with two lanes remaining opened. 

Update 1.55pm: Passengers from the damaged Dion’s bus have been transferred to another bus and the injured woman has been transported to Wollongong Hospital.