The A236 Mitcham Road northbound between A23 Purley Way and B272 Beddington Lane has delays of up to 10 minutes.
Further south at the A23 Brighton Road in Purley between A22 Purley Road and B2030 Smitham Downs Road, there is slow traffic due to congestion.
All the trains and trams are also running smoothly.
The M25 in Kent clockwise between junction five and Clacket Lane Services had closed one lane at 6.30am due to an accident. It caused queues until 7am but is now open again.
