Police are reminding motorists the Mountain Road is always one-way during TT fortnight.
From Ramsey Hairpin to the Creg-ny-Baa vehicles must travel in the direction of the course, 24 hours a day.
Head of road policing Mark Britton says there is continual enforcement of the one-way system, and the dangers of going against the flow are obvious.
Emergency services dealt with a couple of minor incidents on the Mountain Road today (Tuesday) including one accident which required a road closure for a short time.
Island's first rapid EV charger being installed
Mooir Vannin could be first of many
'Significant investment or redevelopment' needed at Ramsey District Cottage Hospital
Braddan Commissioners open expressions of interest for TT camping at Roundhouse