Both the northbound and southbound lanes through the underpass will be closed through the night while workers carry out repairs to the overhead electrical signs informing motorists which lanes are open to them.
“The underpass will be closed until the work has been completed,” Mr Papiwetwoottisak said.
“The work should be finished by about 7am. I apologise for any inconvenience during this time,” he added.
Mr Papiwetwoottisak also confirmed that the middle lane through the underpass will remain closed until further notice for safety reasons.
Before the middle lane’s closure, traffic flow using the central lane alternated between northbound and southbound, depending on the traffic needs at that time of day.
“I want to reduce drivers’ speed in the underpass as the middle lane was often used for overtaking inside the tunnel. It is too dangerous,” Mr Papiwetwoottisak said.
“I hope that Phuket road users will improve their driving behaviour, especially when driving through the underpass,” he said.
For more in formation call the Phuket Highways Office at 076-212179.