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:
Unite the Union confirms Bus Vannin drivers have voted for industrial action
It says it's been given a 'clear and decisive mandate'
DOI committed to having conversations with bus drivers via union, says minister
Dr. Michelle Haywood says they've not been formally notified of ballot result or strike action
Douglas Council objects to a 'Food Warehouse by Iceland' planning application
Local authority says social benefits of store don't outweigh planning objectives
Bus drivers support industrial action
Manx Radio understands it's over disputes about pay and contracts