Auckland Transport wants shopping centres and malls to be proactive in managing traffic ahead of Black Friday sales and Christmas shopping.
It is urging the city's malls to encourage the use of public transport and notify customers when their carparks are full.
Thousands of motorists were stuck in the carpark for hours trying to leave Newmarket's Westfield Mall on Saturday.
Auckland Transport Executive General Manager Public Transport Services Stacey van der Putten spoke to Corin Dann.