"We expect these figures to be replicated again this week, which is why it is important that people drive safe and plan ahead."
Social media users heading to Fieldays can share their travel experiences and get live travel information by using the hashtag #FieldaysTraffic.
"This hashtag will be monitored by our National Travel Information Service team who will be standing by to answer any queries and let people know about any incidents on the key routes to and from the Fieldays so they can try another road if need be," Clark said.
A network of units which use Bluetooth technology have been placed at Fieldays and key central North Island towns such as Tauranga, Rotorua, Hamilton and Cambridge.
The devices use Bluetooth technology to record actual travel times for vehicles between the location of the trackers and Mystery Creek. This information will be regularly updated.
On The Move is a free service which enables people to sign up for information about crashes, road works and driving conditions on their frequently used routes. People can sign up and add their Fieldays route to get up to the minute information.
People can also get travel information by calling the Transport Agency's free phone on 0800 4HIGHWAYS (0800 44 44 49), which can also be used to report any significant road issues or hazards which people may come across during their travels.
Clark said drivers can also keep an eye out for travel information on electronic message boards around the Waikato, as far north as Auckland, and in other areas such as the Bay of Plenty.
Meanwhile visitors to Fieldays can catch a jet boat service to the event near the Narrows jetty at Tamahere or helicopter in from a parking point on Tamahere Drive.