At around 2pm, Metropolitan Police was called to reports of a collision between a car and motorbike in Hanwell between Lyndhurst Avenue and Park Avenue.
Officers arrived along with London Ambulance Service to and a motorist was taken to hospital with injuries to their leg.
The injuries are not thought to be life-threatening or life-changing, police said.
Metropolitan Police officers directed traffic via Iron Bridge and motorists were warned about congestion tailing back to Minterne Avenue to A4127 Tentelow Lane.
Traffic was also affected on 14020 Uxbridge Road to Grosvenor Road and on B454 Windmill Lane to Jersey Road.
A Metropolitan Police spokesman confirmed the Uxbridge Road westbound was reopened at 4pm.
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