Work to improve traffic flow and journey times on the A33 gets underway today.
The Hampshire County Council project involves work at the junction with Thornhill Way and Lillymill Chine in Basingstoke.
The project's expected to last three months.
The works will involve widening Thornhill Way to provide an additional right-turn lane, junction resurfacing and the renewal of the traffic signals.
The County Council says these changes will allow the traffic signals to be reconfigured to improve traffic flow and journey times for the A33.
Mildren Construction Ltd has been awarded the contract to carry out the work.