Police say they'll be monitoring the situation in the northwest of the Island after motorists were seen speeding through roadworks.
On Facebook, the Roads Policing Unit says it's had reports of drivers not slowing down through a temporary 40mph limit on part of the TT course.
The stretch between Handley's Corner in Michael and McGuinness's in Barregarrow is being resurfaced by the Department of Infrastructure in preparation for this year's racing.
Officers say they'll be in the area to enforce the limit and protect the safety of DOI workers.
Repairs on Peel Power Station to get underway
Manx Care doctor survey to be discussed by Tynwald
Weather warning for snow tonight
MHK queries safety at primary school in Ballabeg
Gales put two ferry sailings at risk tonight
Should the Island throw a birthday party for Barry Gibb?
Warning issued over icy roads
High ground could see 4 inches of snow on Saturday night
