As of Monday, the speed limit for motorists heading to Paceville through the Regional Roads tunnel at night has been halved from 60km/hour to 30km/hour, transport authorities have confirmed.
Signs have been temporarily set up along the tunnel ahead of resurfacing and asphalting works planned to start on Monday night.
A Transport Ministry spokesperson did not say how long the works, which are being carried out at night, will take.
She said, however, that the 30km/hour limit would not be enforced during the day.