Senior Sergeant Steve Dickson said one of Northland's three speed cameras would soon be replaced by a marked van.
The 26,073 speed camera tickets issued in Northland were for fines totalling $2,093,970, out of a national fines total of $49,172,330.
Northland police highway patrol acting manager Sergeant Lance Goulsbro said the marked speed camera vehicles were part of a preventative strategy. "It's about visibility and changing perceptions that speed camera tickets are a revenue gathering exercise."
The van could be parked anywhere on the region's roads, Mr Goulsbro said.
Speed cameras were first introduced in New Zealand in 1993 on the basis of their success overseas, which showed that they effectively deterred drivers from speeding.
A police spokesman said a decision was made late last year to trial the marking of a small number of mobile speed camera vans as part of a range of road safety initiatives designed to provide a highly visible deterrent to speeding drivers.
The seven vans were introduced last month in Northland, Waitemata, Central, Eastern and Canterbury police districts as existing vehicles in those districts became due for replacement.
However, they formed only a small proportion of the total fleet.
Police said use of the marked vans would be evaluated before any decision was made about whether to expand the idea.
The evaluation is expected to be completed around the middle of next year.