A number of changes to the road layout are expected over the next three weeks.
Wills Brothers are asking drivers to try and have patience throughout the works and refrain from driving in excess of 30km/hr to protect themselves and workers.
Some motorists have been clocked travelling four times the speed limit through the works:
The contractors are also asking motorists not to jump traffic lights which can cause gridlock and lead to long delays.
Work on the stretch of road is expected to continue into the middle of this year.