The Highways Agency is reminding drivers using the M56, A556 and M6 in Cheshire that the annual RHS Tatton Show is taking place later this month.
The show is taking place between Wednesday, July 23 and Sunday, July 27 and drivers travelling through the area or to the show itself are being urged to plan ahead and check traffic conditions before setting out.
Highways Agency, events planning manager, Phil Stockford said: "This is a long-standing event in the region's summer calendar and we are not anticipating any major traffic problems but we always encourage people to check before they travel when we know there are large events taking place.
"As usual Highways Agency traffic officers will be monitoring the motorway network to respond to any incidents and we will also be setting signs to advise drivers of any problems."
Congestion around junctions 19 and 20 of the M6 and Junction 7 of the M56 is possible at times throughout the event.
Highways Agency traffic officers at the North West regional control centre will be setting signs before and during the event to give advice to drivers and the motorway routes will be supervised by on road patrols from the outstation at Knutsford.
The Highways Agency provides live traffic information via its website highways.gov.uk/traffic, local and national radio travel bulletins, electronic road signs, mobile platforms and Twitter,
Drivers can also call the Highways Agency Information Line(0300 123 5000.