Motorists are being warned to expect delays on the M5 due to Bristol International Balloon Fiesta’s return this week.
Around 60,000 people will descend on Ashton Court Estate, in Long Ashton, over the four-day extravaganza, which is set to celebrate its 41st anniversary this year.
Highways England says motorways and A roads surrounding the venue are likely to be 'very busy' when the event kicks off on Thursday.
The company advises junction 19 on the M5 could be 'particularly busy' as southbound traffic will seek to use it to access the site.
Junction 21 on the same stretch of motorway will also see increased traffic, as northbound road users will use the A370 to travel to the fiesta.
Vehicles will also use the M32 which runs through Bristol to get to the event.
Clifton Suspension Bridge will close between 6pm to midnight on Thursday and Saturday due to the festival's nightglows.
In Bristol, the A369 Rownham Hill road will be closed on all the nights of the event from its junction with Beggar Bush Lane from 7pm until midnight.
A diversion is in place via the B3129 and B3128, near Failand.
South West emergency planning officer, Gareth Price, said: "Highways England is reminding road users to plan ahead during the balloon fiesta - roads leading to the event are likely to be very busy.
"Its aim is to keep the network running while keeping fiesta goers, and other road users, safe and informed.
"Highways advises people to check its traffic and travel information channels, set off early and allow plenty of time for journeys."
Night glows and firework displays will take place on Thursday and Saturday nights from 9-10.30pm.
On Friday and Sunday the fiesta's gates will close at 8.30pm.
Highways will also hold an exhibition stand at this year's event, providing road safety awareness and information on its schemes in the region.
To find out about travel information, visit www.trafficengland.com and phone-users can visit m.highways.gov.uk
Information can also be accessed via Highways' customer contact centre on 03001 235000.
Travel updates will be provided on Twitter @HighwaysSWEST.
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