"This is why we're placing safe speed cameras at [these] and other sites, to encourage people to reduce their speed, which in turn helps reduce deaths and injuries on our roads."
McKennie disputed claims by some people that speed cameras were about revenue collecting, saying they weren't and that police did not keep money from tickets generated by cameras, it went to the Crown's consolidated fund.
"We're only interested in the impact the cameras have on encouraging people to slow down to safe and appropriate speeds, so they get to their destination safely," he said.
As well as installing cameras, the police presence would be increased on routes that had a high crash risk.
McKennie said members of the public could also help reduce carnage on the roads by driving to the conditions and within the speed limit, making sure they were sober and alert when driving and ensuring everyone in the car wore a seatbelt.
"All road users have a part to play in keeping our roads safe. Let's work together and make sure everybody gets where they're going safely," he said.
Locations of the new speed cameras
Counties Manukau: Massey Rd in Mangere and Glenbrook Road in Kingseat
Canterbury: Leeston Rd in Springston
Auckland City: Great North Rd in Grey Lynn
Waikato: State Highway 2 in Waikino and Main Rd in Raglan