Police numbers will be boosted in the Upper Mountains ahead of tomorrow (Saturday's) Winter Magic Festival.
Additional officers from a number of units will be deployed in and around Katoomba for the duration of the festival, assisted by the dog unit, mounted police and highway patrol.
Hoons have been warned that alcohol-fuelled violence and anti-social behaviour will not be tolerated at the family-friendly festival.
"Police will be conducting a high visibility policing operation and ensuring those members of the community attending the Winter Magic Festival have a safe, secure and friendly atmosphere," Blue Mountains command Acting Inspector Damian Wright said.
"Those persons however, wishing to engage in unruly behaviour and criminal conduct at the community festival will be our focus.
"Those that misbehave and engage in alcohol fuelled violence or anti social behaviour risk being arrested and being put before the court."
Police have urged motorists to slow down and drive safely, especially in the Leura and Katoomba areas.
A traffic management plan will be in place and there will be road closures within the Katoomba central business district, with some traffic delays expected.
Pedestrians have also been asked to be aware of their surroundings when crossing roads and to make sure they wait for traffic lights, not run on pedestrian crossings and ensure safety when crossing roads is key.
Visitors should use public transport to travel to the festival where possible, and additional police and Railcorp transit officers will be deployed on Blue Mountains rail services.
People visiting licensed premises in the evening will be monitored and anyone detected drinking liquor to excess and refusing to leave when directed to will also be targeted.
Additional licensing officers and plain clothes police will also be deployed to ensure responsible service of alcohol at licensed premises in the evening.
For further information about the Blue Mountains Winter Magic Festival 2012 visit http://www.wintermagic.com.au/.