Permanent cameras will be put up on a suburban street to stop speeding NDR rat-runners.
It is hoped the two cameras will be put up on Costessey's West End within the next five weeks, according to Sharon Blundell who represents the area on Norfolk County Council (NCC).
The speed deterrents have been welcomed by Costessey Town Council chairman Dan Burrill and vice-chairman, Gary Blundell, after the council has been pushing for them for around five years.
Mrs Blundell said: "Because of the extra traffic from the Broadland Northway, people are speeding on West End using the quickest route to get to where they want to go to. The residents on West End are not happy with the speeding.
She added the extra traffic ended up travelling on nearby 20mph and 30mph residential streets which increased pollution in Costessey.
Mr Blundell said: "I'm happy they are going up. It has been a long time coming. It will slow people down and make them think.
"It is going to be the first time NCC has done something like this in a 20mph area. There are lots of parishes who would like to have cameras like this in their own areas."
The money for the cameras came out of £200,000 of speed mitigation measures from the county council for the Broadland Northway, known as the NDR, as well as £60,000 Section 106 money from the Next development on Longwater Retail Park built about seven years ago.
Mr Blundell added the cameras, which would be operated from county hall, would cost about £13,000 to operate over the next four years.
He said: "We could remove the speed bumps on West End if the cameras do their job and reduce speeding which could then give West End a bus route."
NCC work is due to start on fixing the West End speed bumps and footpath repair from August 16 for four weeks and diversions will be in place.
Mrs Blundell said: "It is going to cause disruption but the work needs to be done. It is very difficult. We have tried to accommodate everyone."
Mr Burrill, said: "I'm pleased we can trial the cameras as a method of enforcing a 20mph limit. Speed bumps are not ideal for that. If we can find another way, it could be a model for other places."
A county council spokesperson said: "Proposals for a new traffic management camera system have been developed over the past couple of years in conjunction with the local town council and county councillor.
"The overall cost of the scheme is £74,000, including the ongoing running costs once the cameras have been installed, and is being funded through private developer contributions as a mitigation against anticipated increases in local traffic volumes arising from these new developments.
"These cameras will differ from traditional roadside safety cameras in that drivers will not be prosecuted for speeding offences, but instead will be used to target educational messages.
"As a new pilot, this scheme will be subject to a regular review of its effectiveness as a traffic calming measure."
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