Officers have focussed on the issue over the last two weeks
Sixteen arrests have been made in relation to drink or drug driving during the Manx Grand Prix and Classic TT period.
The Island's police say the roads have been busier during the racing fortnight.
The Isle of Man Constabulary says it's an issue officers have been focussing on throughout.
Inspector Elliot Butler says there'll be further analysis to determine the split between locals and visitors:
DHSC 'actively exploring' ways to increase ED capacity
Minister Christian says work is also underway to deal with winter demand
'Whole community development' needed in north and west
MLC says the area needs jobs, not just houses
MU completes work to tackle odour in Peel
Sewer infrastructure cleaned following complaints about smell
Information Commissioner rules DESC mishandled FOI on lecturer contracts
Department ordered to revisit request after wrongly refusing to confirm existence of conflict-of-interest records
