"The majority wear safety belts, never drink-drive and are courteous, considerate and safe.''
But Ms Rose warned that between now and the end of the year, there would be more people partying, travelling and celebrating.
Police would be more visible over the holiday period and would "relentlessly breath test all drivers, whatever the time of day''.
"We will also be stopping any driver we detect driving more than 4km/h over the speed limit during the official holiday period.
"We know that just being out there and engaging with our communities provides a powerful deterrent to those who may not be taking their safety and that of other road users seriously.''
Ms Rose said holiday driving required extra care and patience and the majority of drivers were well aware of this.
That included allowing plenty of time for journeys, taking regular breaks, and ensuring everyone was buckled in.
"We don't know all the factors behind what is driving the reduction in the road toll but we do know that police visibility and action plays an important part. Our actions are saving people's lives.''