Nobody wants to spend their bank holiday stuck in traffic, but there could be more cars on the roads this week than ever before this weekend.
Busy routes such as the M56 and A55, especially for those heading to the beach, could be hit by delays.
Heavy congestion near Cheshire Oaks and the M53 is also regular feature of bank holidays.
National tourism agency VisitEngland said an estimated 5.1 million people will take a break within the UK, generating around £1.3 billion for the UK economy.
Max Holdstock, AA patrol of the year, warned traffic jams will build up around large events and urged people to carry extra water in their vehicles because of the warm weather.
He said: “August Bank Holiday weekend is always a bit of a mad scramble on the roads.
“Traffic will be busy again for the return on Monday afternoon - so allow plenty of extra time if you’re travelling then.
“Routes to the coast are usually among the busiest, particularly with hot weather forecast; and there will be localised congestion around events, especially at finish time.
“It’s a good idea to plan an alternative route in case of delays and carry plenty of water - at least a litre per person.”
Transport information supplier Inrix said some stretches of road could have twice as many vehicles between Friday and Monday compared with a normal weekend.
Liverpool John Lennon Airport is also expecting its ‘busiest weekend of the year’.
Around 70,000 travellers are expected to pass through the boarding gates.
High-profile festivals, including Creamfields on the Daresbury Estate, are another contributing factor.
Highways England announced that almost 98% of England’s motorway and major A roads will be clear of roadworks over the weekend.
Some 373 miles of roadworks were either completed or suspended ahead of the holiday.
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