The Mountain Road is one way from Ramsey to Douglas for the duration of TT fortnight.
It was introduced at the Centenary TT in 2007, to try and eradicate head-on collisions.
Inspector Terry Stephen of the Roads Policing Unit says despite the change, people still need to drive and ride responsibly up there:
Peel Commissioners to set off fireworks off from Peel Hill
Display will still be going ahead at 7.30pm
Capital spending outcomes fluctuate across eight-year period, Treasury figures show
Answer to MHK shows delivery rates ranging from 42% to 83%
Complaints to Manx Care rise sharply, as oversight report urges cultural reform
New figures show a 70 percent increase in complaints, with both government and the health ombudsman calling for continued focus on staff values and patient engagement
Reducing hospitality VAT would 'directly affect' provision of frontline services
But treasury minister promises 2026/27 Budget will look at ways to relieve some of the pressure
