
Police say they've already had to stop people trying to go against the TT one-way system on the Mountain, just hours after it came into force.
The Roads Policing Unit says it had a busy day yesterday dealing with various incidents on the Island's roads.
On Facebook, officers, say they had to stop more than one person trying to ignore signs on the route after it reopened at midday yesterday.
They're asking people to read the signs and ignore sat navs.