He said 15 licensed premises, including two restaurants, in the CBD were subjected to the one-way door policy.
"Our community wants to put an end to the harm, injury, crime and violence that happens when people get drunk and out of control. We know that the danger is highest in the hours after midnight, that's when emergency services see an increase in people caught up in violence, crime, harm and injury, and alcohol is nearly always a factor," he said.
Two bars - Bacio on Bank St and Head Office on Water St - that refused to embrace the one-way door system have been ordered by the Alcohol Regulatory and Licensing Authority to do so. The authority rejected their argument that it would be more difficult for bar staff to ask a patron to leave the premises if the person being evicted understood he would be unable to enter other bars.
Des Wallace, director of Bacio, is not confident the new system will change the way people consume alcohol.
"I don't believe it's a clever decision. The council has made bars the scapegoat for other issues in town and because we're legally open means we attract the less desirables into town."
The council has been working with businesses in the CBD, Hospitality NZ , taxi companies, City Safe, and will provide posters and other information for businesses to get the message out there.
"Once the one-way-door policy is in place it will be subject to weekly analysis and problem solving by a focus group including licensees, police, health and council so that any issues can be identified and dealt with immediately," Mr Dell said.
Council contractors Northern District Security which runs CitySafe has trained its officers to help police and other stakeholders enforce the one-way door policy this weekend.
Seven CitySafe ambassadors have received training in council by-laws and will for the first time work at night in the CBD on Fridays and Saturdays.
Gail Lewis has worked as an ambassador for two years and said she and her colleagues are not there to police the one-way door policy, but to report on it.
Four ambassadors will do the night shift and will mainly perform tasks such as escorting bar patrons to taxis, moving vulnerable people like women away from dark areas, and enforcing liquor ban laws.
"We will work in groups of two and police will be there to back us up," she said.