The event, which is being staged at Hylands Park in Chelmsford from 15 to 17 August, attracts more than 70,000 people over the course of the weekend.
The Highways Agency is working in partnership with the event organiser and local authorities to help festival-goers get to the camp site and to keep motorway traffic flowing. Anyone travelling through the area is however, advised to allow extra time for their journey, or to plan an alternative route or time.
Nigel Allsopp, Highways Agency Events Planning Manager for the East of England, said:
Although there won’t be any road closures, we expect the A12 near Chelmsford, the M11 junctions 7 to 9 and M25 junctions 29 to 28 to be much busier than normal.
The campsite opens at midday on Friday 15 and closes at midday on Monday 18 August, so we expect the run-up to and from these times to be particularly busy. We also expect traffic to be busier in the area throughout the weekend.
We strongly advise festival goers and road users in the area to plan ahead and ensure that vehicles have sufficient fuel, and that they have plenty of drinks, such as water, available in the vehicle in case of any delays.
Traffic is also expected to be busy in the same areas on Monday morning as people head home from the festival.
The Highways Agency provides live traffic information via its website, iPhone app, local radio travel bulletins and electronic road signs. Travel information is also available by phone from the Highways Agency Information Line on 0300 123 5000 and updates will be provided via Twitter @HAtraffic_east.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000.
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.