The last bank holiday of summer coincides with a busy weekend for festivals and sporting events, leading the motoring organization to warn of severe disruption around key venues as well as on traditionally busy roads to areas coastal and rural.

It issued the amber warning as it estimates 45% of UK drivers will hit the road for a non-commuter journey between Friday and Monday, with around 15 million leisure journeys scheduled for the weekend.

Day-trippers are expected to battle for space on the roads with families returning from summer vacation and festival-goers attending events across the country.

Although this weekend is not a public holiday in Scotland, it coincides with the closing weekend of the Edinburgh Festival Fringe, with many festival-goers leaving the city expected to increase traffic.

The roads are expected to be exceptionally busy from Friday to Tuesday, but the AA expects leisure traffic to peak on Saturday between 10 a.m. and 4 p.m.

The festival’s closing times are expected to cause major traffic congestion around venues, but the group has also identified a number of major routes where drivers should expect disruption and delays.

Planned traffic hotspots include the M4/M5 interchange near Bristol; the M1 between the M25 and Newport Pagnell, Buckinghamshire; the M6/M42 interchange in Birmingham; and the M62 between Liverpool and Manchester.

AA Patrol of the Year Sean Sidley said: ‘With events and festivals fully back to normal, localized congestion will peak at closing time around key venues, but the rest of the UK could see peak rides throughout Saturday.

“Traffic is likely to build up from Monday afternoon through Tuesday, so allow plenty of time if traveling at that time.

“Routes to and from resorts and beauty spots will be some of the busiest, so drivers should plan ahead and check your car before setting off.”

In addition to holiday-related issues on the roads, rail travelers are facing further disruption on some key routes due to engineering works.

Network Rail said upgrades worth £90million will be made, but stressed that 95% of lines will remain open.

A reduced timetable will be in place between Northampton/Milton Keynes and London Euston due to HS2 works between Saturday and Monday.

Plans to rebuild junctions mean there will be no trains to London Charing Cross or Cannon Street stations on Saturdays or Sundays, with a limited service from Hastings and Tonbridge to London Bridge on both days.

London Bridge and Cannon Street will fully reopen on the bank holiday on Monday, while Charing Cross will remain closed until the following day.

Services between London Waterloo and Reading will be altered and diverted over the three-day weekend due to signaling works.

No Great Northern or Thameslink trains will run between Finsbury Park and Stevenage via Welwyn Garden City on Sunday, and Grand Central trains will be diverted with extended journey times.

Network Rail chief executive Andrew Haines said: ‘I am happy to say that the vast majority of the railway will be open for business as usual this bank holiday, so passengers can rely on us to get them there. where they need to go as they make the most of their summers.

“Our teams will be carrying out upgrade work to improve future passenger journeys, so we ask people to check before they travel and ensure their itinerary is not affected.”