Some streets in Bristol will be traffic free today as part of an experiment that could see cars banned on a regular basis next year.
Bristol city centre is to be closed to traffic once a month under a new plan announced today by Mayor George Ferguson.
A stretch of the M5 near Bristol is to be closed overnight while a footbridge is dismantled.
Oxford Street in Burnham-on-Sea is partially blocked due to an accident involving a car and a bicycle.
It's at the B3140 Manor Road / St Andrew's Road junction by the Esso garage.
There's queueing traffic on the M32 outbound at J2 A432 / B4058 / B4469 (Eastville), congestion on the A4032 Newfoundland Street is back to the A4044 New Bond Street / St Paul Street.
The A350 in Wiltshire is closed in both directions between Mons Lane (Lacock) and Westlands Lane (Beanacre) because of an accident.
There are now queues of up to six miles on the M5 in Gloucestershire as the motorway remains closed between J13 and J14.
It follows an accident in the early hours of this morning in which the driver of a lorry died.
The M5 is closed southbound in Gloucestershire because of a serious accident between junctions 13 and 14. A diversion is in place on the A38, but the Highways Agency are appealing for people to delay their journeys if possible.
The A361 is closed in both directions due to an accident between B4019 Brewery Street / B4000 Shrivenham Road (Highworth) and A417 St John's Street ( Lechlade ).
Uphill Way in Uphill, Weston-super-Mare has re-opened following the earlier police incident between Old Church Road and Uphill Road South.
The A37 in Frampton near Dorchester is partially blocked due to an accident near Church Lane and Long Ash Services.
The M4 in Wiltshire has reopened between junctions 15 and 14 after this morning's multi-vehicle accident.
A car transporter, car and van collided on the eastbound carriageway just after midnight. A number of other collisions also occurred, causing major delays during rush hour.
– Wiltshire Police spokesperson
As a result of these collisions, three people were seriously injured with one woman receiving life threatening injuries.
Two have been airlifted to Frenchay Hospital in Bristol and one has been taken via land ambulance to the Great Western Hospital in Swindon. The next of kin of all those injured have been informed.
A man was arrested on suspicion of causing a serious injury by dangerous driving.
He remains in custody at Gablecross Police Station.